# RBSE Solutions for Class 12 Maths Chapter 9 Integration Ex 9.2

## Rajasthan Board RBSE Class 12 Maths Chapter 9 Integration Ex 9.2

Exercise 9.2 Class 12 Maths RBSE Question 1.
Integrate the following w.r.t.x :
(a) x sin x2
(b) x $$\sqrt { { x }^{ 2 }+1 }$$
Solution :

RBSE Solutions For Class 12 Maths Chapter 9.2 Question 2.
Find the following :

Solution:

Ex 9.2 Class 12 RBSE Question 3.
Find the following :

Solution:

RBSE Class 12 Maths Chapter 9 Solution Question 4.
Find the following :

Solution:

RBSE Solutions For Class 12 Maths Chapter 9 Question 5.
Find the following :

Solution:

RBSE Class 12 Math Chapter 9.2 Question 6.
Find the following :

Solution:

RBSE Class 12 Maths Ex 9.2 Question 7.
Find the following :
(a) ∫ sin 3x sin 2x dx
(b) ∫ $$\sqrt { 1-sin x }$$ dx
Solution:

9.2 Maths Class 12 Question 8.
Find the following :
(a) ∫ cos4 x dx
(b) ∫ sin3 x dx
Solution:

Ex 9.2 Class 12 Question 9.
Find the following :

Solution:

RBSE Solutions For Class 12 Maths Chapter 9.2 Question 10.
Find the following :

Solution:

Exercise 9.2 Class 12 Maths Question 11.
Find the following :

Solution:

RBSE Solutions For Class 12 Maths Chapter 9.2 Question 12.
Find the following :

Solution:

= cos 2a ∫ dt – sin 2a ∫ cot t dt
= (cos 2a)t – sin 2a log | sin t | + C1
= (x + a) cos 2a – sin 2a log | sin (x + a) | + C1
= x cos 2a – sin 2a log | sin (x + a) | + a cos 2a + C1
= x cos 2a – sin 2a log | sin (x + a) | + C
( where C = a cos 2a + C1)

9.2 Class 12 Maths Question 13.
Find the following :

Solution:

Ex 9.2 Class 12 Maths Question 14.
Find the following :

Solution:

Class 12 Maths Chapter 9 Exercise 9.2  Question 15.
Find the following :

Solution:

Question 16.

Solution: