{"id":4582,"date":"2016-05-17T09:49:00","date_gmt":"2016-05-17T04:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-maths-exercise-1-3\/"},"modified":"2016-05-17T10:34:15","modified_gmt":"2016-05-17T05:04:15","slug":"ncert-solutions-class-11-maths-exercise-1-3","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-maths-exercise-1-3\/","title":{"rendered":"NCERT Solutions class-11 Maths Exercise 1.3"},"content":{"rendered":"<div>\n<p style=\"text-align: justify;\"><strong>Exercise 1.3<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>1. Make correct statements by filling in the symbols <\/strong><img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/><strong> or <\/strong><img decoding=\"async\" style=\"height: 16px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image002.png\" \/><strong> in the blank spaces:<\/strong><\/p>\n<\/div>\n<p><strong>(i) {2, 3, 4} _______ {1, 2, 3, 4, 5}<\/strong><\/p>\n<div>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong><img decoding=\"async\" style=\"height: 27px; width: 163px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image003.png\" \/><\/p>\n<\/div>\n<p><strong>(iii) {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a student of class XI of your school} _______ {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> student of your school}<\/strong><\/p>\n<div>\n<p style=\"text-align: justify;\"><strong>(iv) {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a circle in the plane} _______ {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a circle in the same plane with 1 unit}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(v) {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a triangle in plane} _______ {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong>is a rectangle in the same plane}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(vi) {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is an equilateral triangle in a plane} _______ {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a rectangle in the same plane}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(vii) {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is an even natural number} _______ {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is an integer}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans.<\/strong> <strong>(i)<\/strong> <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(ii)<\/strong> <img decoding=\"async\" style=\"height: 16px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image002.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iii)<\/strong> <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iv)<\/strong> <img decoding=\"async\" style=\"height: 16px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image002.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(v)<\/strong> <img decoding=\"async\" style=\"height: 16px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image002.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(vi)<\/strong> <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(vii)<\/strong> <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/><\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>2. Examine whether the following statements are true or false:<\/strong><\/p>\n<\/div>\n<p><strong>(i) <\/strong><img decoding=\"async\" style=\"height: 27px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image005.png\" \/><\/p>\n<div>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong><img decoding=\"async\" style=\"height: 27px; width: 53px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image006.png\" \/><strong> {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a vowel in the English alphabet}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong><img decoding=\"async\" style=\"height: 27px; width: 111px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image007.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <\/strong><img decoding=\"async\" style=\"height: 27px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image008.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(v) <\/strong><img decoding=\"async\" style=\"height: 27px; width: 89px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image009.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(vi) {<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is an even natural number less than 6}<\/strong><img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/><strong>{<\/strong><img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><strong> is a natural number which divide 36}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i) <\/strong>Let A = <img decoding=\"async\" style=\"height: 27px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image010.png\" \/> and B = <img decoding=\"async\" style=\"height: 27px; width: 53px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image011.png\" \/><\/p>\n<p style=\"text-align: justify;\">Here, every element of set A is an element of set B.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>A <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> B<\/p>\n<p style=\"text-align: justify;\">Therefore, statement is false.<\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong>Let A = <img decoding=\"async\" style=\"height: 27px; width: 39px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image013.png\" \/> and B<\/p>\n<p style=\"text-align: justify;\">= {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/> is a vowel in the English alphabet}<\/p>\n<p style=\"text-align: justify;\">= <img decoding=\"async\" style=\"height: 27px; width: 77px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image014.png\" \/><\/p>\n<p style=\"text-align: justify;\">Here, every element of set A is an element of set B.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>A <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> B<\/p>\n<p style=\"text-align: justify;\">Therefore, statement is true.<\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong>Let A = {1, 2, 3} and B = {1, 3, 5}<\/p>\n<p style=\"text-align: justify;\">Here, 2 <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A but 2 <img decoding=\"async\" style=\"height: 16px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image016.png\" \/> B<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>A <img decoding=\"async\" style=\"height: 16px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image002.png\" \/> B<\/p>\n<p style=\"text-align: justify;\">Therefore, statement is false.<\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <\/strong>Let A = <img decoding=\"async\" style=\"height: 27px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image017.png\" \/> and B = <img decoding=\"async\" style=\"height: 27px; width: 53px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image018.png\" \/><\/p>\n<p style=\"text-align: justify;\">Here, every element of set A is an element of set B.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>A <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> B<\/p>\n<p style=\"text-align: justify;\">Therefore, statement is true.<\/p>\n<p style=\"text-align: justify;\"><strong>(v) <\/strong>Let A = <img decoding=\"async\" style=\"height: 27px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image017.png\" \/> and B = <img decoding=\"async\" style=\"height: 27px; width: 53px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image018.png\" \/><\/p>\n<p style=\"text-align: justify;\">Here, <img decoding=\"async\" style=\"height: 27px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image017.png\" \/><img decoding=\"async\" style=\"height: 16px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image016.png\" \/> B<\/p>\n<p style=\"text-align: justify;\">Therefore, statement is false.<\/p>\n<p style=\"text-align: justify;\"><strong>(vi) <\/strong>Let A = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/> is an even natural number less than 6}<\/p>\n<p style=\"text-align: justify;\">= {2, 4}<\/p>\n<p style=\"text-align: justify;\">And B = }<img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/>{<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/> is a natural number which divide 36}<\/p>\n<p style=\"text-align: justify;\">= {1, 2, 3, 4, 6, 12, 18, 36]\n<p style=\"text-align: justify;\">Here, every element of set A is an element of set B.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>A <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> B<\/p>\n<p style=\"text-align: justify;\">Therefore, statement is true.<\/p>\n<hr \/>\n<p><strong>3. Let A = {1, 2, {3, 4}, 5}. Which of the following statements are incorrect and why:<\/strong><\/p>\n<\/div>\n<div>\n<p style=\"text-align: justify;\"><strong>(i) {3, 4} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) {3, 4} <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) {{3, 4}} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) 1 <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(v) 1 <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(vi) {1, 2, 5} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(vii) {1, 2, 5} <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(viii) {1, 2, 3} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ix) <img decoding=\"async\" style=\"height: 21px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image019.png\" \/> A<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(x) <img decoding=\"async\" style=\"height: 21px; width: 28px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image020.png\" \/> A<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i) <\/strong>{3, 4} is a member of set A.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image021.png\" \/>{3, 4} <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A<\/p>\n<p style=\"text-align: justify;\">Therefore, {3, 4} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A is incorrect.<\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong>{3, 4} is a member of set A. Therefore, {3, 4} <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A is incorrect.<\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong>{3, 4} is a member of set A.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image021.png\" \/> {{3, 4}} is a set.<\/p>\n<p style=\"text-align: justify;\">Therefore, {{3, 4}} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A is incorrect<\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <\/strong>1 is a member of set A. Therefore 1 <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A is correct.<\/p>\n<p style=\"text-align: justify;\"><strong>(v) <\/strong>1 is not a set, it is a member of set A. Therefore, 1 <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A is incorrect.<\/p>\n<p style=\"text-align: justify;\"><strong>(vi) <\/strong>1, 2, 5 are the members of set A.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image021.png\" \/>{1, 2, 5} is a subset of set A.<\/p>\n<p style=\"text-align: justify;\">Therefore, {1, 2, 5} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A is correct.<\/p>\n<p style=\"text-align: justify;\"><strong>(vii) <\/strong>1, 2, 5 are the members of set A.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image021.png\" \/>{1, 2, 5} is a subset of set A.<\/p>\n<p style=\"text-align: justify;\">Therefore, {1, 2, 5} <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> A is incorrect.<\/p>\n<p style=\"text-align: justify;\"><strong>(viii) <\/strong>3 is not a member of set A.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image021.png\" \/> {1, 2, 3} is not a subset of set A.<\/p>\n<p style=\"text-align: justify;\">Therefore, {1, 2, 3} <img decoding=\"async\" style=\"height: 13px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image001.png\" \/> A is incorrect.<\/p>\n<p style=\"text-align: justify;\"><strong>(ix) <\/strong><img decoding=\"async\" style=\"height: 21px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image022.png\" \/> is not a member of set A. Therefore, <img decoding=\"async\" style=\"height: 21px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image019.png\" \/> A is correct.<\/p>\n<p style=\"text-align: justify;\"><strong>(x) <\/strong><img decoding=\"async\" style=\"height: 21px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image022.png\" \/> is not a member of set A. Therefore, <img decoding=\"async\" style=\"height: 21px; width: 28px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image020.png\" \/> A is incorrect.<\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>4. Write down all the subsets of the following sets:<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(i) <img decoding=\"async\" style=\"height: 27px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image017.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <img decoding=\"async\" style=\"height: 27px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image010.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) {1, 2, 3} <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <img decoding=\"async\" style=\"height: 21px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image022.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i) <\/strong>Number of elements in given set = 1.<\/p>\n<p style=\"text-align: justify;\">Number of subsets of given set = <img decoding=\"async\" style=\"height: 20px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image023.png\" \/> = 2<\/p>\n<p style=\"text-align: justify;\">Therefore, Subsets of given set are <img decoding=\"async\" style=\"height: 27px; width: 45px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image024.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong>Number of elements in given set = 2<\/p>\n<p style=\"text-align: justify;\">Number of subsets of given set = <img decoding=\"async\" style=\"height: 20px; width: 19px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image025.png\" \/> = 4<\/p>\n<p style=\"text-align: justify;\">Therefore, Subsets of given set are<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 27px; width: 115px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image026.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong>Number of elements in given set = 3<\/p>\n<p style=\"text-align: justify;\">Number of subsets of given set = <img decoding=\"async\" style=\"height: 20px; width: 17px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image027.png\" \/> = 8<\/p>\n<p style=\"text-align: justify;\">Therefore, Subsets of given set are<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 27px; width: 267px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image028.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <\/strong>Number of elements in given set = 0<\/p>\n<p style=\"text-align: justify;\">Number of subsets of given set = <img decoding=\"async\" style=\"height: 20px; width: 19px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image029.png\" \/> = 1<\/p>\n<p style=\"text-align: justify;\">Therefore, Subsets of given set are <img decoding=\"async\" style=\"height: 21px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image030.png\" \/><\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>5. How many elements has P(A), if A = <\/strong><img decoding=\"async\" style=\"height: 21px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image022.png\" \/><strong> ?<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Number of elements in set A = 0<\/p>\n<p style=\"text-align: justify;\">Number of subsets of given set = <img decoding=\"async\" style=\"height: 20px; width: 19px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image029.png\" \/> = 1<\/p>\n<p style=\"text-align: justify;\">Therefore, number of elements of P (A) is 1.<\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>6. Write the following as intervals:<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(i) {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 69px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image031.png\" \/>} <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 95px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image032.png\" \/>}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image033.png\" \/>} <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image034.png\" \/>}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i) <\/strong>Let A = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 69px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image031.png\" \/>}<\/p>\n<p style=\"text-align: justify;\">It can be written in the form of interval as <img decoding=\"async\" style=\"height: 27px; width: 47px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image035.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong>Let A = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 95px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image032.png\" \/>}<\/p>\n<p style=\"text-align: justify;\">It can be written in the form of interval as <img decoding=\"async\" style=\"height: 27px; width: 72px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image036.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong>Let A = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image033.png\" \/>}<\/p>\n<p style=\"text-align: justify;\">It can be written in the form of interval as <img decoding=\"async\" style=\"height: 27px; width: 37px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image037.png\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <\/strong>Let A = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image034.png\" \/>}<\/p>\n<p style=\"text-align: justify;\">It can be written in the form of interval as <img decoding=\"async\" style=\"height: 27px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image038.png\" \/><\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>7. Write the following intervals in set-builder form:<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(i) <img decoding=\"async\" style=\"height: 27px; width: 47px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image039.png\" \/><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) [6, 12] <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) (6, 12] <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <img decoding=\"async\" style=\"height: 27px; width: 53px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image040.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i)<\/strong> {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 69px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image041.png\" \/>}<\/p>\n<p style=\"text-align: justify;\"><strong>(ii)<\/strong> {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 67px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image042.png\" \/>}<\/p>\n<p style=\"text-align: justify;\"><strong>(iii)<\/strong> {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 67px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image043.png\" \/>}<\/p>\n<p style=\"text-align: justify;\"><strong>(iv)<\/strong> {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/><img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> R, <img decoding=\"async\" style=\"height: 19px; width: 77px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image044.png\" \/>}<\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>8. What universal set(s) would you propose for each of the following:<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(i) The set of right triangles <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) The set of isosceles triangles<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i) <\/strong>Right triangle is a type of triangle. Therefore, the set of triangles contain all types of triangles.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>U = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/> is a triangle in plane}<\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong>Isosceles triangle is a type of triangle. Therefore, the set of triangles contain all types of triangles.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image012.png\" \/>U = {<img decoding=\"async\" style=\"height: 15px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image004.png\" \/> is a triangle in plane}<\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>9. Given the set A = {1, 3, 5}, B = {2, 4, 6} and C = {0, 2, 4, 6, 8}, which of the following may be considered as universal set(s) for all the three sets A, B and C:<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(i) {0, 1, 2, 3, 4, 5, 6} <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <img decoding=\"async\" style=\"height: 21px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image022.png\" \/> <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iv) {1, 2, 3, 4, 5, 6, 7, 8}<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i) <\/strong>{0, 1, 2, 3, 4, 5, 6} is not a universal set for A, B, C because 8 <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> C but 8 is not a member of {0, 1, 2, 3, 4, 5, 6}.<\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong><img decoding=\"async\" style=\"height: 21px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image022.png\" \/> is a set which contains no element. therefore, it is not a universal set for A, B, C.<\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong>{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} is a universal set for A, B, C because all members of A, B, C are present in {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.<\/p>\n<p style=\"text-align: justify;\"><strong>(iv) <\/strong>{1, 2, 3, 4, 5, 6, 7, 8} is not a universal set for A, B, C because 0 <img decoding=\"async\" style=\"height: 13px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/11\/maths\/ch01\/Ex1.3\/image015.png\" \/> C but 0 is not a member of {1, 2, 3, 4, 5, 6, 7, 8}.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Exercise 1.3 1. Make correct statements by filling in the symbols or in the blank spaces: (i) {2, 3, 4} _______ {1, 2, 3, 4, 5} (ii) (iii) { is a student of class XI of your school} _______ { student of your school} (iv) { is a circle in the plane} _______ { is &#8230; <a title=\"NCERT Solutions class-11 Maths Exercise 1.3\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-maths-exercise-1-3\/\" aria-label=\"More on NCERT Solutions class-11 Maths Exercise 1.3\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47,281],"tags":[],"class_list":["post-4582","post","type-post","status-publish","format-standard","hentry","category-cbse-class-11","category-ncert-solutions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions class-11 Maths Exercise 1.3 | myCBSEguide<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-maths-exercise-1-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NCERT Solutions class-11 Maths Exercise 1.3 | myCBSEguide\" \/>\n<meta property=\"og:description\" content=\"Exercise 1.3 1. Make correct statements by filling in the symbols or in the blank spaces: (i) {2, 3, 4} _______ {1, 2, 3, 4, 5} (ii) (iii) { is a student of class XI of your school} _______ { student of your school} (iv) { is a circle in the plane} _______ { is ... 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