No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Mohd Arman 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Ayush Singh 1 year, 8 months ago

    √2 = p/q, where 'p' and 'q' are integers, q ≠ 0 and p, q have no common factors (except 1).

    0Thank You

    Prakhar Sharma 1 year, 8 months ago

    Let us assume on the contrary that 2 ​ is a rational number. Then, there exist positive integers a and b such that 2 ​ = b a ​ where, a and b, are co-prime i.e. their HCF is 1 ⇒( 2 ​ ) 2 =( b a ​ ) 2 ⇒2= b 2 a 2 ​ ⇒2b 2 =a 2 ⇒2∣a 2 [∵2∣2b 2 and 2b 2 =a 2 ] ⇒2∣a...(i) ⇒a=2c for some integer c ⇒a 2 =4c 2 ⇒2b 2 =4c 2 [∵2b 2 =a 2 ] ⇒b 2 =2c 2 ⇒2∣b 2 [∵2∣2c 2 ] ⇒2∣b...(ii) From (i) and (ii), we obtain that 2 is a common factor of a and b. But, this contradicts the fact that a and b have no common factor other than 1. This means that our supposition is wrong. Hence, 2 ​ is an irrational number.

    1Thank You

    ANSWER

    • Posted by Hasithekshini Busala 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Chinmayi P P 1 year, 8 months ago

    1

    0Thank You

    Rahul Singh Bisht 1 year, 8 months ago

    1

    0Thank You

    Ayush Singh 1 year, 8 months ago

    😌0

    0Thank You

    Soham Singh 1 year, 8 months ago

    1

    0Thank You

    Omya Aryan 1 year, 8 months ago

    1

    2Thank You

    ANSWER

    • Posted by Ashi Ashi 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Omya Aryan 1 year, 8 months ago

    Construction is not in syllabus

    1Thank You

    ANSWER

    • Posted by Sapna N 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Rahul Singh Bisht 1 year, 8 months ago

    30x

    0Thank You

    ANSWER

    • Posted by Pavani Chugh 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Aayuj Patel 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Adesh Tomar 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Anjali Nagar 1 year, 8 months ago

    Which have more than 2 factor

    0Thank You

    Ashutosh Sharma 1 year, 8 months ago

    Factor more than 2

    0Thank You

    Omya Aryan 1 year, 8 months ago

    The number which has more than 2 factors is factors is known as composite number. OR numbers other than prime number is known as composite number.

    0Thank You

    ANSWER

    • Posted by Hema Malini 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Shiv Kumar 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER
    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

    Few rules to keep homework help section safe, clean and informative.
    • Don't post personal information, mobile numbers and other details.
    • Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
    • Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
    • Ask specific question which are clear and concise.

    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    Posted by Palak Singhal 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Bhumi Chaudhary 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Aryan Singh 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Alok Kumar 1 year, 8 months ago

    X²+7x+6 X²+6x+x+6 X(x+6)+1(x+6) (X+1)(x+6) Zeros of the polynomial X+1=0 X=-1 X+6=o X=-6 Sum of zeros Alpha + beta =-b\a -6+(-1)=-7\1 7 =7 Alpha ×beta =c\a -6×(-1). =6\1 6. =6 PROVED

    1Thank You

    Omya Aryan 1 year, 8 months ago

    Sum of zeros = -b/a = -7……Product of zeros = c/a = 6

    1Thank You

    Omya Aryan 1 year, 8 months ago

    x²+7x+6……x²+6x+1x+6……x(x+6)+1(x+6)……(x+1)(x+6)……x=-1 or x=-6

    1Thank You

    ANSWER
    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

    Few rules to keep homework help section safe, clean and informative.
    • Don't post personal information, mobile numbers and other details.
    • Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
    • Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
    • Ask specific question which are clear and concise.

    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    Posted by Nitesh Yadav 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Rajeev Rajpoot 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Preeti Dabral 1 year, 8 months ago

    Prime Factors of 3233 are: 53, 61.

    1Thank You

    Rajeev Rajpoot 1 year, 8 months ago

    What is Reflection of light

    1Thank You

    ANSWER

    • Posted by Gauri Basetiya 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Anilkumar P S Anilkumar 1 year, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Preeti Dabral 1 year, 8 months ago

    f(x) = 4x2 + 4x - 3
    {tex}\Rightarrow \quad f \left( \frac { 1 } { 2 } \right) = 4 \left( \frac { 1 } { 4 } \right) + 4 \left( \frac { 1 } { 2 } \right) - 3{/tex}
    = 1 + 2 - 3 = 0
    and {tex}f \left( - \frac { 3 } { 2 } \right) = 4 \left( \frac { 9 } { 4 } \right) + 4 \left( - \frac { 3 } { 2 } \right) - 3{/tex}
    = 9 - 6 - 3 = 0
    {tex}\therefore \frac { 1 } { 2 } , - \frac { 3 } { 2 }{/tex}are zeroes of polynomial 4x2 + 4x - 3.
    Sum of zeroes = {tex}\frac { 1 } { 2 } - \frac { 3 } { 2 } = - 1 = \frac { - 4 } { 4 }{/tex}
    {tex}= - \frac { \text { Coefficient of } x } { \text { Coefficient of } x ^ { 2 } }{/tex}
    Product of zeroes = {tex}\left( \frac { 1 } { 2 } \right) \left( - \frac { 3 } { 2 } \right) = \frac { - 3 } { 4 }{/tex}
    {tex}= \frac { \text { Constant term } } { \text { Coefficient of } x ^ { 2 } }{/tex}
    Verified.

    0Thank You

    ANSWER

    • Posted by Ali Ahamad Khan 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Avinash Tripathi 1 year, 9 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

    Few rules to keep homework help section safe, clean and informative.
    • Don't post personal information, mobile numbers and other details.
    • Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
    • Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
    • Ask specific question which are clear and concise.

    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    0Thank You

    ANSWER

    • Posted by Aman Khan 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Anvesha Sahay 1 year, 9 months ago

    All chapters are important we can't choose any particular chapter to do practice of it and get passed easily.

    0Thank You

    Nishant Singh 1 year, 9 months ago

    Statics

    0Thank You

    ANSWER

    • Posted by Akhilesh Shankhdhar 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Akhilesh Shankhdhar 1 year, 9 months ago

    Prove टू अपऑन अंडर रूट 2 इज irrational

    2Thank You

    ANSWER

    • Posted by Khursheed Alam 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Raunak Yadav 1 year, 8 months ago

    √1/2

    1Thank You

    Deepak Sharma 1 year, 9 months ago

    ½ is the value of sin30°

    0Thank You

    Anushka Sharma 1 year, 9 months ago

    1/2 is the value of sin30°

    0Thank You

    Varsha Chauhan 1 year, 9 months ago

    0.5

    0Thank You

    Hrishikesh Debnath 1 year, 9 months ago

    One and half

    0Thank You

    ANSWER

    • Posted by Chinmayi P P 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Khursheed Alam 1 year, 9 months ago

    Ajns

    0Thank You

    Shreyash Kumar Jaiswal 1 year, 9 months ago

    1/2 * 1/2 + √3/2 * √3/2 1/4 +3/4 4/4 1

    1Thank You

    ANSWER

    • Posted by Chinmayi P P 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Sarika Joshi 1 year, 9 months ago

    1/√2 + 0 is 1/√2

    0Thank You

    Shreyash Kumar Jaiswal 1 year, 9 months ago

    1/2 + 1 = 1/2+2/2 = 3/2

    0Thank You

    ANSWER

    • Posted by Satyam Gupta 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Paritosh Rajput 1 year, 9 months ago

    Prove

    2Thank You

    Navkirat Kaur 1 year, 9 months ago

    Let √2 is rational √2=a/b Where a and b are integers and b is not equal to 0 Rational is not equal to Irrational Our assumption is wrong √2 is irrational

    1Thank You

    ANSWER

    • Posted by Tharun Nayak 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Preeti Dabral 1 year, 9 months ago

    17×5×11×3×2+2×11=17×5×3×22+22

    =22(17×5×3+1)
    =22(255+1)=2×11×256 -----(i)


    Equation (i) is divisible by 2, 11 and 256, so it has more than 2 prime factors.

    ∴ (17×5×11×3×2+2×11) is a composite number.

    0Thank You

    Payal Kumari Kushwaha 1 year, 8 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

    Few rules to keep homework help section safe, clean and informative.
    • Don't post personal information, mobile numbers and other details.
    • Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
    • Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
    • Ask specific question which are clear and concise.

    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    0Thank You

    ANSWER

    • Posted by Tharun Nayak 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Preeti Dabral 1 year, 9 months ago

    787

    0Thank You

    ANSWER

    • Posted by Afiya Afiya 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Preeti Dabral 1 year, 9 months ago

    Height of the cylinder (h) = 14 cm,
    Base diameter = 7 cm
    {tex}\Rightarrow{/tex} Radius of the base of the cylinder (r) = 3.5 cm
    Volume of the cylinder = {tex}\pi r ^ { 2 } h{/tex}
    = {tex}\frac { 22 } { 7 } \times 3.5 \times 3.5 \times 14{/tex}
    = 22 {tex}\times{/tex}3.5 {tex}\times{/tex}3.5{tex}\times{/tex}14
    = 539 cm3
    Radius of the conical holes (r1) = 2.1 cm,
    Height of the conical holes (h1) = 4 cm,
    volume of the conical hole {tex}= \frac { 1 } { 3 } \pi r _ { 1 } ^ { 2 } h _ { 1 }{/tex}
    {tex}= \frac { 1 } { 3 } \times \frac { 22 } { 7 } \times 2.1 \times 2.1 \times 4{/tex}
    = 18.48 cm3
    Volume of the two conical hole = 2 {tex}\times{/tex}18.48
    = 36.96 cm3
    Volume of the remaining solid = Volume of the cylinder - Volume of two conical hole
    = 539 - 36.96
    = 502.04 cm3

    0Thank You

    ANSWER

    • Posted by ._Nishant _. 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    K_Hushii 🍁 1 year, 9 months ago

    3median =mode + 2mean

    1Thank You

    Omya Aryan 1 year, 9 months ago

    3 Median = Mode + 2 Mean

    2Thank You

    ANSWER

    • Posted by Ankit Dangi 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    A B 1 year, 9 months ago

    yes..

    0Thank You

    Omya Aryan 1 year, 9 months ago

    (i) Jivanti had 15 marbles. (ii) Jhon had 30 marbles. (iii) If 45 is replaced by 55 in the above case, then Jivanti will have 20 marbles.

    2Thank You

    ANSWER

    • Posted by Nayana M S 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Surviver 🪐 1 year, 9 months ago

    Given , a6+a9 = 136 a12+a15 = 136 a12+a15 = 256 Solu- Dys

    0Thank You

    Dushyant Shukla 9 months, 4 weeks ago

    Chapter 3ka question 5

    6Thank You

    ANSWER

    • Posted by Tanvi Tripathi 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Vidyut Kumaran 1 year, 9 months ago

    We have to prove that √5 is an irrational number It can be proved using the contradiction method Assuming √5 as a rational number, i.e., can be written in the form a/b where a and b are integers with no common factors other than 1 and b is not equal to zero. √5/1 = a/b √5b = a By squaring on both sides 5b2 = a2 b2 = a2/5 .... (1) It means that 5 divides a2. It means that it also divides a a/5 = c a = 5c By squaring on both sides a2 = 25c2 Substituting the value of a2 in equation (1) 5b2 = 25c2 b2 = 5c2 Prove that √5 is irrational. b2/5 = c2 As b2 is divisible by 5, b is also divisible by 5 a and b have a common factor as 5 It contradicts the fact that a and b are coprime This has arisen due to the incorrect assumption as √5 is a rational number. Therefore, √5 is irrational. Prove that √5 is irrational. It is proved that √5 is irrational.

    1Thank You

    Bhavnoorpreet Kaur 1 year, 9 months ago

    Let us assume that 5^ is an rational number. So we have to find co-prime in the form of p/q where q is not equals to zero. Such that 2^ = p/q So b 2^=a 2b^2 =a^ According according to 1.8 divisible by 2 squarring on both sides =2^b^2 =a^2. Substituting the values we get 2c=a Substituting for a we get 2b^2=4c^2 B^2=2c^2 So this means that 2 / b^2 square and also divide by b therefore A and B have at least common factor but this contradict ic the no common factors rather than one this contradiction has been that due to our wrong assumption. So we concluded that it is irrational

    3Thank You

    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2024