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

No products in the cart.

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

Ask Question

Why quarterly question paper is not there

Posted by Ganesh Kumar 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is permutations

Posted by Abhishek Sharma 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Anushka Sharma 8 years, 3 months ago

Permutatiom means arrangment

3Thank You

ANSWER

4ab-2 (a^-b^)i

Posted by Shashank Shekhar Panigrahi 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Express the angular measurement of the angle of a regular decagon in degrees and radian.

Posted by Rahul Sharma 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

n!/(n-r)!=n(n-1)(n-2)...(n-(r-1)) this question is from permutations

Posted by Ashish Yadav 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the locys of the center of the circle ?(please explain with diagram)

Posted by Abhinav Gupta 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

12term of an AP is greater than its 5term by 14and sum of both term is36.find first term and common difference

Posted by Abhishek Kumar 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Swarnali Mondal 8 years, 3 months ago

12th term = 5th term +14 => a+(12-1)d = a+(5-1)d +14 => a + 11d = a + 4d + 14 => 7d = 14 => d = 2

0Thank You

ANSWER

1+2+3+.....+n<1/8 (2n+1)

Posted by Fazal Ameer 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Square root of 76533

Posted by Aditya Sharma 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Shivaditya Pandey 8 years, 3 months ago

276.65

0Thank You

ANSWER

Add 678542567866.87656

Posted by Aditya Sharma 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If 1 + omega + omega raise to the power 5 whose whole power is 7 ( 1+ w + w5)7 is purely real or imaginary then find omega(w).

Posted by Aansh Ojha 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the formula of sin(a+b)

Posted by Abhishek Kumar 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Amar Kumar 8 years, 3 months ago

sin(A + B) = sin A cos B + cos A sin B.

0Thank You

ANSWER

In how many of distinct permutations of the letter in MISSISSIPPI do the four I not come together

Posted by Abhishek Singh 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Cosec (90+A)+ x cosA cot (90+A) = sin(90+A)

Posted by Tulika Srivastawa 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

find tn for the following A.P.s 1). 4,9,14,19

Posted by Vikki Pandit 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Vikki Pandit 8 years, 3 months ago

5n-1

1Thank You

ANSWER

Cos36

Posted by Sagar Prasad 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the value of cosec 18 degree. ------------2 marks

Posted by Lairikyengbam Naresh 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sin(B-C) ÷Sin(B+C) =b×b-c×c÷a×a

Posted by Aarti Sharma 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(a+b)^4 Complete the identity.

Posted by Sunny Nigam 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Nitish Prakash 8 years, 3 months ago

a⁴ + a³b + a²b² + ab³ + b⁴

1Thank You

ANSWER

P.T. 1^2+2^2+3^2+........n^2=n(n+1)(2n+1)/6

Posted by Sunny Nigam 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If cos (a+b)= 0 then sin (a+2b)=?.....solve it plz

Posted by Himanshi Shukla 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Pranav Choudhary 8 years, 3 months ago

Cos(a+b)=0 sin(a+b)=root under1-0^2=±1 sin(a+2b)=sin[(a+b)+b] sin(a+b)=1*cosb+ cos(a+b)=0*sinb =±cosb ans.

1Thank You

ANSWER

(a+b)^2

Posted by Renu Garg 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Sunny Nigam 8 years, 3 months ago

Identity goes as follows: a^2+2ab+b^2

1Thank You

ANSWER

For z=2+3i verify the following z double bar=z

Posted by Purva Khobragade 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

ABCD is a trapezium in which ABllCD. The diagonals AC and BD interest at O . If OA=6cm, OC=8cm.Find Area (AOD) /Area(COD)

Posted by Shashikant Tripathi 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sec4x - sec2x = 2

Posted by Pragya Jagwani 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Mohit Sharma 7 years, 10 months ago

Sec[2x] = 1/(2Cos²(x) - 1)
Sec[4x] = 1/(2((2Cos²(x) - 1)² - 1)
Let z = Cos²(x)
Then we have:
1/(2(2z - 1)² - 1) - 1/(2z - 1) = 2
which eventually reduces to the quadratic equation:
16z² - 20z + 5 = 0
with solutions z = (1/8)(5 ± √5)

0Thank You

ANSWER

How sinx÷n=6

Posted by Saurav Gidwani 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(2½)²½ is rational or irrational

Posted by F J Ggg 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Sunny Nigam 8 years, 3 months ago

As ans. Is 2 Thus, this is rational no.

1Thank You

ANSWER

Complex no. tan(alpha) - i

Posted by Rachit Gupta 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

There are 10 lamps in a hall . Each one of them can be switched on independently. Find the number of ways in which the hall can be illuminated.

Posted by Kirti Bhardwaj 8 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is a co-domain

Posted by Rohit Goswami 8 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Divya Kumari 8 years, 3 months ago

All the elements of set 'B' are called co-domain of the function.

3Thank You

ANSWER

Page 367 of 380

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Install Now

Test Generator

Create papers online. It's FREE.

Try Now

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Install Now

myCBSEguide

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers