CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

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

Ask Question

How to know that between 9π/4 and 3π cosine X is Positive or negative

Posted by Vibhash Pandey 8 years, 1 month ago

1 answers

Chandrashekhar Wankhede 8 years, 1 month ago

9pi/4 - 2pi = (pi/4) = 45 degree, 3pi -2pi = pi = 180 degree, Hence by imagining revolving line in XY plane , cos X is positive from 45 to 90 but negative from 90 onwards till 180 degree..

1Thank You

ANSWER

What is the perimeter of a rectangle whose length and Breadth are 5cm and 2cm respectively

Posted by Sanjeev Kumar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

5 answers

Mimansha Rawat 8 years, 1 month ago

Ans is 2(l+b) i.e 14 Plz yaar grown up now Don't ask such silly questions

0Thank You

Shivanshu Yadav 8 years, 1 month ago

Very good beta ???

2Thank You

Muskan Bhardwaj 8 years, 1 month ago

Ye 3rd class ka ques hai ??

1Thank You

Muskan Bhardwaj 8 years, 1 month ago

1Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

God level question.....noone can answer this.....????

1Thank You

ANSWER

Integration factor of (1+y^)dx - (tan^-1-x)dy

Posted by Akmal Khan 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Q. Decompose the vector 6î-3j-6k into vectors which are parallel and perpendicular to the vector î+j+k.

Posted by Anuj Goyal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

It is non biodegradable and non decomposable

2Thank You

ANSWER

Evaluate integration of xsq/(xsq+1)(xsq+4)

Posted by Prabhat Ranjan 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Prabhat Ranjan 8 years, 1 month ago

Sir what is answer

1Thank You

Chhavi Verma 8 years, 1 month ago

Use partial fraction

2Thank You

ANSWER

Using differential, find the approximate value of 3√127.

Posted by Rishu Anand 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Log

Posted by Chandan Mishra 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Piche se daalta hu mu se nikalta hai

2Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Mera long hai

1Thank You

ANSWER

Prove that. 4 ( cot-¹ 3 + cosec-¹ √5 ) = π .

Posted by Anay Patidar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

4 answers

Anay Patidar 8 years, 1 month ago

No its right ...... Its correct

0Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

2(2tan-¹)...... 2tan-¹x ka formula use karo

1Thank You

Anay Patidar 8 years, 1 month ago

But its not correct because on solving its 4 tan-¹ =tan- ¹ and they are not equal

0Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Convert cot -1. And cosec-1 to tan-1 Put pi as tan -¹(1)

0Thank You

ANSWER

Ncert ki 7.3 ex samjh na aa rhi bilkul bhi ki karu?

Posted by Ayush Gupta 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Himza Jangra 8 years, 1 month ago

Is exercise ko krne s phle ek baar 11 k formula revise KR lo fir ho jaygi

1Thank You

ANSWER

What is the integration of 1/sinx +cosx ?

Posted by Aryan Kumar Singh 8 years, 1 month ago

CBSE > Class 12 > Mathematics

3 answers

Mimansha Rawat 8 years, 1 month ago

Given solution is also correct

1Thank You

Mimansha Rawat 8 years, 1 month ago

Put identity and then solve

1Thank You

Lekha Raj 8 years, 1 month ago

Convrt it into tanx/2 form and solve it by substitution.

0Thank You

ANSWER

Prove 2 tan-¹ [√a-b/ a+ b tan x/2] = cos-¹ [b+a cos x/ a+b cos x ]

Posted by Anay Patidar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

4 answers

Mimansha Rawat 8 years, 1 month ago

Itni sari square root se i am getting confused

0Thank You

Mimansha Rawat 8 years, 1 month ago

I am unable to understand the question properly

0Thank You

Mimansha Rawat 8 years, 1 month ago

Yep

0Thank You

Lekha Raj 8 years, 1 month ago

It's very lengthy..........

0Thank You

ANSWER

Which one is better to solve sample papers or last year's question paper's for all the 5 subjects???

Posted by Abc Xyz 8 years, 1 month ago

CBSE > Class 12 > Mathematics

3 answers

Mimansha Rawat 8 years, 1 month ago

Solve last year's paper

1Thank You

Aisha Grewal 8 years, 1 month ago

Again abc xyz

1Thank You

Hina Siddiqui 8 years, 1 month ago

Both

1Thank You

ANSWER

I confused probability

Posted by Sathiya Priya 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Mimansha Rawat 8 years, 1 month ago

Do it from rd sharma .....ur confusion would get cleared

0Thank You

Mitthu Singh 8 years, 1 month ago

Me too

1Thank You

ANSWER

I confused in probability

Posted by Diya Kumari 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Shivanshu Yadav 8 years, 1 month ago

Hmm m b

2Thank You

Aisha Grewal 8 years, 1 month ago

I also

1Thank You

ANSWER

I'm confused in probability... ???

Posted by Aisha Grewal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is bionomial

Posted by Deepak Jaiswal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Is order matter in question of probability

Posted by Harsh Singh Thakur 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate (cosax-sinbx)^2

Posted by Aakriti Agrawal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is integration og 1plus sinx divided by 1 plus cos square x

Posted by Shivesh Trivedi 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Chhavi Verma 8 years, 1 month ago

Split numerator into two parts Convert 1st part into sec2x and in 2nd take cosx=t then integrate

0Thank You

Harsh Singh Thakur 8 years, 1 month ago

Bhai first break it then let t = cosx then you will and formula based question bro its simple

0Thank You

ANSWER

Class 12 ka maths paper come from ncert what is the% 0f it

Posted by Hariom Shakya 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Harsh Singh Thakur 8 years, 1 month ago

Bhai 75%

1Thank You

ANSWER

Integration of tan^x(x)dx

Posted by Animesh Kumar Tiwari 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Shivanshu Yadav 8 years, 1 month ago

I late method

2Thank You

ANSWER

Differentiate e√tan√tanex

Posted by Ashi Verma 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the equation of normal the curve x square = 4y which passes through the point 1, 2

Posted by Prince Singh 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

4 sin-1(cos-1 x) = π find value of x

Posted by Himza Jangra 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Bayes theorem

Posted by Ayush Kumar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is the solution of question 5 in inverse trignometic function imp questions cos-¹ [ 3/5 cos x + 4/5 sin x ]

Posted by Anay Patidar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Siddharth Basu 8 years, 1 month ago

Take 3÷5 as cos¥ and ultimate ly 4÷5 as sin¥ then at last apply cos(¥-x) rule

1Thank You

ANSWER

x=e^(x/y), prove that dy/dx=(x-y)/xlogx

Posted by Rahul Jangir 8 years, 1 month ago

CBSE > Class 12 > Mathematics

3 answers

Siddharth Basu 8 years, 1 month ago

In simple words convert e^x÷y into e^x-y and shift e^y to lhs and x to denominator of e^x and then diff.

1Thank You

Rahul Jangir 8 years, 1 month ago

Its from differentiation topic

0Thank You

Siddharth Basu 8 years, 1 month ago

Do variable separable and then differentiate art x

0Thank You

ANSWER

Tan

Posted by Sanjay Suyal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of sine inverse x

Posted by Sagar Mittal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Ritesh Ray 8 years, 1 month ago

Apply intergation by parts.

3Thank You

ANSWER

integration of |xcospiex|dx = ?

Posted by Akash Gupta 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Aditya Raj 8 years, 1 month ago

Apply integration by parts

0Thank You

ANSWER

Page 377 of 481

myCBSEguide

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers