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

It's because few students never take the subject seriously. One should know that the Mathematics is world's most easiest subject and can score good Mark's if studied seriously. Maths ask for more time than other subjects.

1Thank You

Shreya Dubey 5 years, 3 months ago

I do feel the same..

0Thank You

ANSWER

Tan x + tan 2x + tan 3x = 0 , find the value of x

Posted by Suman Chaudhary 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sin thita + Cos thita = 1 Find the value of thita

Posted by Suman Chaudhary 5 years, 3 months ago

CBSE > Class 11 > Mathematics

5 answers

Sathi Gupta 5 years, 3 months ago

R u satisfy?

0Thank You

Sathi Gupta 5 years, 3 months ago

Thita=45°

0Thank You

Monika Gautam 5 years, 3 months ago

correct is thita=2n pie+pie/2 and thita=2n pie

1Thank You

Monika Gautam 5 years, 3 months ago

previous was wrong

0Thank You

Monika Gautam 5 years, 3 months ago

thita= n pie+(-1)^n pie/4 and thita=n pie

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ANSWER

If the sum of square roots if the equation x^2+(p+q)x+3i=0 is 8,then find the value of p and q , where p and q are real?

Posted by Shreya Dubey 5 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Shreya Dubey 5 years, 3 months ago

3 i means 3 iota, where iota=√-1

0Thank You

Sathi Gupta 5 years, 3 months ago

3i means Plz tell me

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ANSWER

Find the value of x x 3 2 x x 1 = -3 1 0 1

Posted by Pragati Ishwarkar 5 years, 3 months ago

CBSE > Class 11 > Mathematics

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ANSWER

Example 18 chapter 7

Posted by Kiran Poonia 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the conjugate of 1-4i/7+4i-7-4i?

Posted by Charanjeet Singh Heir 5 years, 3 months ago

CBSE > Class 11 > Mathematics

4 answers

Shrishti Namdeo 5 years, 3 months ago

My answer is correct or not

0Thank You

Monika Gautam 5 years, 3 months ago

1+i/4

0Thank You

Shrishti Namdeo 5 years, 3 months ago

Tell me if it is correct then I will suggest solution

0Thank You

Shrishti Namdeo 5 years, 3 months ago

1+4i

2Thank You

ANSWER

What is the range ofthe functions f(x)=3x-2

Posted by Uma Songara 5 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Monika Gautam 5 years, 3 months ago

(-infinity,infinity)

0Thank You

Suman Chaudhary 5 years, 3 months ago

( -- 2 , infinite)

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ANSWER

For disjoint sets A and B ,n(A) = 3 , n(B) = 5 ,then n(A∩∩B) is

Posted by Pankaj Jain 5 years, 3 months ago

CBSE > Class 11 > Mathematics

3 answers

Suman Chaudhary 5 years, 3 months ago

A intersection B = phy

1Thank You

Vivek Kumar 5 years, 3 months ago

Disjoint sets means no element is common in them

0Thank You

Vivek Kumar 5 years, 3 months ago

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ANSWER

If (2a +b , a -b) = (8,3) find a and b Options a = 2/3 , b = 11/3 a = 11/3 , b = 2/3 a = 3/2 , b = 11/3 a = 8 , b = 3

Posted by M V 5 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Suman Chaudhary 5 years, 3 months ago

a = 11/ 3 and b = 2/3

2Thank You

Vivek Kumar 5 years, 3 months ago

Equating both sides , 2a+b = 8 a-b=3 Solve both equations & find the ans

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ANSWER

exercise 3rd

Posted by Manpreet Manpreet 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Let A={1,2,3,4},B={3,5,6,7} and C={3,5,8}.Find the following...

Posted by Khushi Thakur 5 years, 3 months ago

CBSE > Class 11 > Mathematics

3 answers

Sathi Gupta 5 years, 3 months ago

Wht following ......?

0Thank You

Radha Sengar 5 years, 3 months ago

What to find ????

0Thank You

Suman Chaudhary 5 years, 3 months ago

Find the following , what ?

1Thank You

ANSWER

2tan square x + sec square x = 2

Posted by Suman Chaudhary 5 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Kashish Passi 5 years, 3 months ago

2(1- sec square+ sec Square) 2(1)=2 hence proved

1Thank You

Manpreet Manpreet 5 years, 3 months ago

exercise 3.1

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ANSWER

In the set of integers, let a relation R be defined as a R b if and only if a-b is even . Prove that 1.(a,a) belongs to R for all a belongs to Z

Posted by Muskan Jaglan 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sin x + sin 3x+ sin 5x = 0

Posted by Suman Chaudhary 5 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Suman Chaudhary 5 years, 3 months ago

Thanks

1Thank You

Jagdish 5 years, 3 months ago

sinx + sin3x + sin5x = 0 »(sinx + sin5x) + sin3x = 0 Using the formula sinA + sinB = 2sin(A+B/2)cos(A-B/2) we get »2sin3x*cos2x + sin 3x = 0 Taking sin3x common, »sin3x(2cos2x+1) = 0 »sin3x = 0 or 2cos2x+1 = 0 sin 3x = sin 0 or cos2x = -1/2 » 3x = nπ + (-1)^n (0) or cos2x = cos 2π/3 » x = nπ/3 or x = (2nπ ± 2π/3)/2 » x = nπ/3 or x = nπ ± π/3

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ANSWER

2x+3y≥6, x-2y≤2 ,6x+4y≤24, -3x+2y≤3, x≥0 , y≥0

Posted by Vaishali Choudhary 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

2n-1 pn, 2n+1Pn-1=22:7

Posted by Gunjan Sharma 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the number of terms in the expansion of (a+b + c)^n

Posted by Anubhav Raj 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Cosbeta into cos 2alpha minus beta equal to

Posted by Dev Tandon 5 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

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