NCERT Solutions for Class 12 Maths Chapter 7 Integrals Ex 7.9

Evaluate the definite integrals in Exercise 1 to 20.

Ex 7.9 Class 12 Maths Question 1.

Ex 7.9 Class 12 Maths Question 2.

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Ex 7.9 Class 12 Maths Question 3.

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Ex 7.9 Class 12 Maths Question 4.

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Ex 7.9 Class 12 Maths Question 5.

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Ex 7.9 Class 12 Maths Question 6.

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Ex 7.9 Class 12 Maths Question 7.

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Ex 7.9 Class 12 Maths Question 8.

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Ex 7.9 Class 12 Maths Question 9.

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Ex 7.9 Class 12 Maths Question 10.

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Ex 7.9 Class 12 Maths Question 11.

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Ex 7.9 Class 12 Maths Question 12.

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Ex 7.9 Class 12 Maths Question 13.

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Ex 7.9 Class 12 Maths Question 14.

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Ex 7.9 Class 12 Maths Question 15.

Solution:
let x² = t ⇒ 2xdx = dt
when x = 0, t = 0 & when x = 1,t = 1

Ex 7.9 Class 12 Maths Question 16.

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Ex 7.9 Class 12 Maths Question 17.

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Ex 7.9 Class 12 Maths Question 18.

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Ex 7.9 Class 12 Maths Question 19.

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Ex 7.9 Class 12 Maths Question 20.

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Ex 7.9 Class 12 Maths Question 21.

(a) 
(b) 
(c) 
(d) 
Solution:
(d) 

Ex 7.9 Class 12 Maths Question 22.

(a) 
(b) 
(c) 
(d) 
Solution:
(c) 

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