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

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

Ask Question

Using binomial theorem, evaluate Cube root of 127 up to 4 places of decimal

Posted by Abhishek Garg 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sum of first p,q,r terms of AP are a,b,c Prove that. A/p (q-r)+b/q (r-p)+c/r (p-q)

Posted by Monik Gujjar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Cosx/1+sinx=tan(π/4-x/2)

Posted by Saloni Poddar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

First principle f(x) =sun x

Posted by Harshita Joshi 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

the axis of the parabola is parallel to the line x-2y+1=0.the vertex (2,1) and the foot of the perpendicular from focus on the line is at a unit distance.then find the the equation of the parabola.

Posted by Nivi Nathan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Write the 5 first 5 terms of the sequences a1= a2= 2 , an=an-1 -1 , 2<n

Posted by Rishu Singh 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Ujjawal Patidar 6 years, 11 months ago

The question is not correct an=an-1-1,n>2

0Thank You

ANSWER

If sinx=cosx, write the value of 2tan^2x+cos^2x

Posted by Yash Garg 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Dolly ?️ 6 years, 11 months ago

3-sin^2x

5Thank You

ANSWER

Prove that n(n+1)(2n+1) is divisible by 6

Posted by Nidhi Verma 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Lim theta tends to 0 ,1-cos theta/ 1-cos3 theta

Posted by Ramneet Kaur 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Swapnil Ghosh 6 years, 11 months ago

Let theta=x So, lim x->0 1-cosx/1-cos3x =lim x->0 2sin^2(x/2) / 2sin^2(3x/2) =[lim x->0 sin(x/2) / sin(3x/2)] [limx->0 sin(x/2) / sin(3x/2)] = [lim x->0 sin(x/2)/(x/2) × lim x->0 (x/2) / sin3x/2)] [ lim x->0 sin(x/2)/(x/2) × lim x->0 (x/2)/sin(3x/2)] = [1× lim 3x/2->0 (3x/2)/sin(3x/2)× lim x->0 (x/2)/(3x/2)] [ 1 × lim 3x/2->0 (3x/2)/sin(3x/2) × lim x->0 (x/2)/(3x/2)] = (1× lim x->0 x/3x)(1×lim x->0 x/3x) = (1/3)(1/3) =1/9, is the required answer.

3Thank You

ANSWER

If different permutations of all the letters of the word EXAMINATION are listed as in a dictionary, how many words are there before the first word starting with E?

Posted by Gurnoor Singh 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Rajat Vashistha 6 years, 11 months ago

Only thw words starting with A. Apply permutation for all possible words starting with A and you will get the answer.

2Thank You

ANSWER

Find : 1+2+3+4+………….+(n+1)

Posted by Gaurav Sharma 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Rajat Vashistha 6 years, 11 months ago

[(n+1)(n+2)]/2

4Thank You

ANSWER

What is the value of tanπ\8

Posted by ?Rahul? ?Gusain? 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Rajat Vashistha 5 years, 9 months ago

(2)^1/2 -1

1Thank You

ANSWER

If theta is the acute angle between

Posted by Swati Shinde 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Prakhar J 6 years, 11 months ago

Pls type full question

1Thank You

ANSWER

What is the difference between show that and prove that in mathematics questions??

Posted by Harsh Panchal 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Rajat Vashistha 6 years, 11 months ago

No technical difference.

4Thank You

ANSWER

Pi R 2 Pi R formula

Posted by Sonu Jha 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

In a servey of 600 students in a school 150 students were found to be taking tea and 225 taking coffee 100 were taking both tea and coffee. Find how many student were taking neither tea nor coffee?

Posted by Balkar Singh 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Prakhar J 6 years, 11 months ago

325....

1Thank You

Saif Imam 6 years, 11 months ago

total no. of students =600 no. of students who are taking both tea and coffee=100. no. of students who are taking only tea= (150-100)=50. no. of students who are taking only coffee=(225-100). hence, no. of students who are taking neither tea nor cofee.=600-(100+50+125) =600-275 =325 students

0Thank You

ANSWER

under route to place under route to place under route to plus two course at theta proving

Posted by Shivam Maurya 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Shivam Maurya 6 years, 11 months ago

Solution

2Thank You

ANSWER

Is it possible that function is not continuous but limit exists

Posted by Mohan Rawat 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Ashish Kumar Singh 6 years, 11 months ago

Yes

1Thank You

ANSWER

Wasant panchami ki bahut shari badaie..... Happy sarwaswati puja 2 all of u

Posted by Aditya Kumar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Last year paper of maths class 11

Posted by Natik Malik 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is [x] i.e. greatest integer function?

Posted by Rajat Vashistha 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Barinderjit Singh 6 years, 11 months ago

Left integer to x i.e [3.4]=3

1Thank You

ANSWER

How many ways for arrange of 6 children in circular table

Posted by Dolly ?️ 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Dolly ?️ 6 years, 11 months ago

5!/2

2Thank You

Naveen Kumar Sharma 6 years, 11 months ago

0Thank You

ANSWER

If z= 2+√3i, find the value of zz

Posted by Vivek Kumar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Ram Kushwah 6 years, 11 months ago

{tex}\style{font-family:Arial}{\style{font-size:10px}{\begin{array}{l}zz=(2+\sqrt3i)\times{(2+\sqrt3i)}\\=2^2+(\sqrt3i)^2+4\sqrt3i\\=4+3i^2+4\sqrt3i\\=4-3+4\sqrt3i\\=1+4\sqrt3i\end{array}}}{/tex}

2Thank You

ANSWER

Class 7 question

Posted by Aman Singh 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the darivative of 1/x

Posted by Arman Khan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

3 answers

Sushant Pratap 6 years, 11 months ago

-1x*; *=-2

0Thank You

Harshita Verma 6 years, 11 months ago

X•d/dx 1 - 1•d/dx X ____________________ X² X•0 - 1•1 ___________ X² 0-1 ______ X² Ans= -1/X²

2Thank You

Ayushman Sharan 6 years, 11 months ago

First u should ask about the variable with respect to which u want your derivative. By the way with respect to x, the answer ofyour question is -1/x^2

3Thank You

ANSWER

find the distance of the point (1,2,3) from the line passing through (-1,2,-2) and perpendicular to the plane x-y+2z=6

Posted by The Helper 6 years, 11 months ago

CBSE > Class 11 > Mathematics