CBSE > Class 11 > Mathematics | CBSE Board | Homework Help | myCBSEguide

No products in the cart.

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

Ask Question

3f(x)+2f(1/x)=x*x

Posted by Devansh Desai 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

f the coefficients of 2nd, 3rd and 4th terms in the expansion of (1+x)^2n are in AP, show that 2n^2-9n+7-0.

Posted by Vishal Singh 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(A+b)( a-b)

Posted by Jatin Chauhan 6 years, 4 months ago

CBSE > Class 11 > Mathematics

5 answers

Shubham Kumar 6 years, 4 months ago

a2- b2

Sushant Mittal 6 years, 4 months ago

a^2-b^2

Yogita Ingle 6 years, 4 months ago

(a + b)( a - b) = a² - b²

Viki Sharma 6 years, 4 months ago

A square-B square

Ronak Poddar 6 years, 4 months ago

A square ×B square

ANSWER

2sinx +2 cosx =1

Posted by Udit Kumar 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Prove that 0!=1 Where (!)=factorial

Posted by Ananya Sharma 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Make modulus function graph for -4,4

Posted by Manasvi Gupta 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

since (B+C) ÷2=(b-c) ÷a×cos(A) ÷2

Posted by Kunsh Suneja 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Let Sn denotes the sum of n terms of an A.P. if S2n =3Sn , the ratio S3n / sn=

Posted by Anjna Bansal 6 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

Let 1st term be a and common difference be d.
Given, S_2n = 3s_n
{tex}\therefore{/tex}{tex}\frac { 2 n } { 2 }{/tex} [2a + (2n - 1) d] = 3 {{tex}\frac { n } { 2 }{/tex} [2a + (n - 1) d]}
{tex}\Rightarrow{/tex} 4a + (4n - 2) d = 6a + (3n - 3)d
{tex}\Rightarrow{/tex} 2a = (n + 1)d...(i)
Now, {tex}\frac { S _ { 3 n } } { S _ { n } } = \frac { \frac { 3 n } { 2 } [ 2 a + ( 3 n - 1 ) d ] } { \frac { n } { 2 } [ 2 a + ( n - 1 ) d ] }{/tex}
= {tex}\frac { 3 \{ ( n + 1 ) d + ( 3 n - 1 ) d \} } { ( n + 1 ) d + ( n - 1 ) d }{/tex} [from Eq. (i)]
= {tex}\frac { 3 ( 4 n d ) } { 2 n d }{/tex} = 6:1

ANSWER

The sum of numbers from 250 to 1000 which is divisible by 3 is

Posted by Anjna Bansal 6 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Anjna Bansal 6 years, 4 months ago

45°

ANSWER

Write the value of tan 3π/12

Posted by Khushi Kumar 6 years, 4 months ago

CBSE > Class 11 > Mathematics

5 answers

Adarsh Kesharwani 6 years, 4 months ago

Tan 3π/12=3π/12×180/π=45° tan45°=.

Adarsh Kesharwani 6 years, 4 months ago

1

Shubham Chanana 6 years, 4 months ago

Answer is 1

Om Vajpayee 6 years, 4 months ago

Answer is 1

Rajat Barwar 6 years, 4 months ago

It is 1, if you will write it as tan(π/4) then ot will look easy.... Hope it may help you...

ANSWER

Find tan5x in term of tan

Posted by Dipu Mishra 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the rank of the word "VARTIKA" and "ANNU"

Posted by Yash Goswami????? 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Cos(60+a) sin(60-a)=1/4(root3-2sin a)

Posted by Shubham Chanana 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If A union B is equal to B union A and A intersection B is equal to B intersection A then show that A=B

Posted by Neela Chotaliya 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

A ={1,2,3,5,} and B={4,6,9} define a relation from A toB by R={(x,y): the difference between x and y is odd ;is belong to A, y belong to B} write R in roster from

Posted by Anup Yadav 6 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Vibes Positive 6 years, 4 months ago

R={ (1,4),(1,6),(2,9),(3,4),(3,6),(5,4),(5,6) }

ANSWER

Trigononetric formulas used in chapter 3 of ncert

Posted by Miss-$ ¥ 6 years, 4 months ago

CBSE > Class 11 > Mathematics

4 answers

Miss-$ ¥ 6 years, 4 months ago

Chapter is Trigonometric Functions

Ayush Vishwakarma?? 6 years, 4 months ago

Dekh iss app me maths me ja aur lesson trigo choose kar all formula diya hua hai . Ok

Manish Kumar 6 years, 4 months ago

Can you please tell me the full name of the chapter so that I can help you because I am not having the book with me

Manish Kumar 6 years, 4 months ago

It may be formula of compound angle

ANSWER

In how many ways can an examinee answer a set of 10 true false type questions

Posted by Manish Kumar 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

6π÷0 =

Posted by Sharad Rai 6 years, 4 months ago

CBSE > Class 11 > Mathematics

2 answers

Rajat Barwar 6 years, 4 months ago

Friend it actually it is not defined but we consider it as infinity. Hope it may help you...

Ayush Vishwakarma?? 6 years, 4 months ago

Zero

ANSWER

Prove that 1+cossquare 2theta = 2 ( cos power 4theta +sinpower 4 theta)

Posted by Ashish Rana 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

The sum of first 7 terms of an AP is 10 and that of next 7 terms is 17. Find the progression.

Posted by Abhimanyu Prasad 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

1+(1+3)+(1+3+5)+...+ n terms=n(n+1)(2n+1)/6

Posted by Harshad Bhapkar 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Plot the graph of greatest integer function and also write the domain, codomain, and range.

Posted by Sai Baishnabi 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Write the set A=(x:x is an integer -1<=x<y) in roster form

Posted by Sam Sam 6 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Sam Sam 6 years, 4 months ago

In roaster form

Ayush Vishwakarma?? 6 years, 4 months ago

-infinity to -1 tak bhai

Amrita Rana 6 years, 4 months ago

...,-3,-2,-1.

ANSWER

Class 11th maths syllbus sa1 &sa2

Posted by Mahendra Kumar 6 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Mohit Kumar 6 years, 4 months ago

Sa 1 ka half book or sa 2 Ka pura book okk

ANSWER

How to find the value of cos53

Posted by Yash Goswami????? 6 years, 4 months ago

CBSE > Class 11 > Mathematics

4 answers

Mahi ✌?? 6 years, 4 months ago

..

Yash Goswami????? 6 years, 4 months ago

Answer nahi ata apko u bolo na

Yash Goswami????? 6 years, 4 months ago

Kyu kya baat h pagal ki isme

Ayush Vishwakarma?? 6 years, 4 months ago

Pagal ho kya

ANSWER

What is parabola

Posted by Reshu Barak 6 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Mohit Kumar 6 years, 4 months ago

Parabola symmetric about x-axis Equation are Y power 2 =4ac

ANSWER

Solve the cubic equation 3×^3-26×^2+52×-24 if it forms a geometric progression

Posted by Varsha Sankari Varsha 6 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Aatmik Sharma 6 years, 4 months ago

X= 26,2,3

ANSWER

Solve the cubic equation 9×^3-36×^2+44×-16 if the roots form an aritnetic progression

Posted by Varsha Sankari Varsha 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Solve the cubic equation 2×^3-×^2-18×+9, if two of its vanishes

Posted by Varsha Sankari Varsha 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

a+(a+d)+(a+2d)+...+ a+(n-1)d =n/2 2a+(n-1)d

Posted by Kusumam Thomas 6 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Page 118 of 380

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App