# NCERT solution class 12 chapter 1 Integrals exercise 1.9 mathematics part 2

## EXERCISE 1.9

#### Question 1:  By second fundamental theorem of calculus, we obtain #### Question 2:  By second fundamental theorem of calculus, we obtain #### Question 3:  By second fundamental theorem of calculus, we obtain #### Question 4:  By second fundamental theorem of calculus, we obtain #### Question 5:  By second fundamental theorem of calculus, we obtain #### Question 6:  By second fundamental theorem of calculus, we obtain #### Question 7:  By second fundamental theorem of calculus, we obtain #### Question 8:  By second fundamental theorem of calculus, we obtain #### Question 9:  By second fundamental theorem of calculus, we obtain #### Question 10:  By second fundamental theorem of calculus, we obtain #### Question 11:  By second fundamental theorem of calculus, we obtain #### Question 12:  By second fundamental theorem of calculus, we obtain #### Question 13:  By second fundamental theorem of calculus, we obtain #### Question 14:  By second fundamental theorem of calculus, we obtain #### Question 15:  By second fundamental theorem of calculus, we obtain #### Question 16: Let   Equating the coefficients of x and constant term, we obtain

A = 10 and B = −25   Substituting the value of I1 in (1), we obtain #### Question 17:  By second fundamental theorem of calculus, we obtain #### Question 18:  By second fundamental theorem of calculus, we obtain #### Question 19:  By second fundamental theorem of calculus, we obtain #### Question 20:  By second fundamental theorem of calculus, we obtain #### Question 21: equals

A. B. C. D.  By second fundamental theorem of calculus, we obtain Hence, the correct answer is D.

#### Question 22: equals

A. B. C. D.  By second fundamental theorem of calculus, we obtain Hence, the correct answer is C.

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