{"id":4610,"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-9-4\/"},"modified":"2016-05-17T11:12:09","modified_gmt":"2016-05-17T05:42:09","slug":"ncert-solutions-class-11-maths-exercise-9-4","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-11-maths-exercise-9-4\/","title":{"rendered":"NCERT Solutions class-11 Maths Exercise 9.4"},"content":{"rendered":"

Exercise 9.4<\/strong><\/p>\n

Find the sum to terms in each of the series in Exercises 1 to 7.<\/strong><\/p>\n

1.<\/strong><\/p>\n

Ans. <\/strong>Given:<\/strong>to terms<\/p>\n

= [ term of 1, 2, 3, \u2026\u2026\u2026..][ term of 2, 3, 4, 5, \u2026\u2026\u2026]\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

2.<\/strong><\/p>\n

Ans. <\/strong>Given: <\/strong> to terms<\/p>\n

= [ term of 1, 2, 3, \u2026\u2026\u2026..][ term of 2, 3, 4, 5, \u2026\u2026\u2026][ term of 3, 4, 5, \u2026\u2026\u2026]\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

3.<\/strong><\/p>\n

Ans. <\/strong>Given: <\/strong> to terms<\/p>\n

= [ term of 3, 5, 7, \u2026\u2026\u2026..][ term of 1, 2, 3, 4, \u2026\u2026\u2026]2<\/sup><\/p>\n

= = <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

4.<\/strong><\/p>\n

Ans. <\/strong>Given: to terms<\/p>\n

<\/p>\n

= <\/p>\n

= = [By partial fraction]\n

\u2026\u2026\u2026<\/p>\n

And<\/p>\n

= = <\/p>\n

\n

5.<\/strong><\/p>\n

Ans. <\/strong>Given: <\/strong><\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= = 2840<\/p>\n

\n

6.<\/strong><\/p>\n

Ans. <\/strong>Given: <\/strong>to terms<\/p>\n

= [ term of 3, 6, 9, \u2026\u2026\u2026..][ term of 8, 11, 14, \u2026\u2026\u2026..]\n

= <\/p>\n

= = <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

7.<\/strong><\/p>\n

Ans. <\/strong>Given: <\/strong> to terms<\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

Find the sum to terms in each of the series in Exercises 8 to 10 whose terms is given by<\/strong><\/p>\n

8.<\/strong><\/p>\n

Ans. <\/strong>Given:<\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

9.<\/strong><\/p>\n

Ans. <\/strong>Given:<\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

\n

10.<\/strong><\/p>\n

Ans. <\/strong>Given:<\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n

= <\/p>\n","protected":false},"excerpt":{"rendered":"

Exercise 9.4 Find the sum to terms in each of the series in Exercises 1 to 7. 1. Ans. Given:to terms = [ term of 1, 2, 3, \u2026\u2026\u2026..][ term of 2, 3, 4, 5, \u2026\u2026\u2026] = = = = = = = = = 2. Ans. Given: to terms = [ term of 1, … 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-4610","post","type-post","status-publish","format-standard","hentry","category-cbse-class-11","category-ncert-solutions"],"yoast_head":"\nNCERT Solutions class-11 Maths Exercise 9.4 | 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-9-4\/\" \/>\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 9.4 | myCBSEguide\" \/>\n<meta property=\"og:description\" content=\"Exercise 9.4 Find the sum to terms in each of the series in Exercises 1 to 7. 1. Ans. Given:to terms = [ term of 1, 2, 3, \u2026\u2026\u2026..][ term of 2, 3, 4, 5, \u2026\u2026\u2026] = = = = = = = = = 2. Ans. Given: to terms = [ term of 1, ... 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