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  • Provide Solution For R.D.Sharma Maths Class 12 Chapter 18 Indefinite Integrals Exercise Revision Exercise Question 13 Maths Textbook Solution.

Provide Solution For R.D.Sharma Maths Class 12 Chapter 18  Indefinite Integrals Exercise  Revision Exercise Question 13 Maths Textbook Solution.

Answers (1)

Answer:

\log \left|\sin ^{-1} x\right|+c

Given:

\int \frac{1}{\left(\sin ^{-1} x\right)\left(\sqrt{1-x^{2}}\right)} d x

Hint:

Let \sin ^{-1} x=u and then do derivation of it .

Solution:  

\int \frac{1}{\left(\sin ^{-1} x\right)\left(\sqrt{1-x^{2}}\right)} d x

Let u=\sin ^{-1} x

Differentiate it with respect to x.

\frac{d u}{d x}=\frac{1}{\sqrt{1-x^{2}}}

d u=\frac{1}{\sqrt{1-x^{2}}} d x

now,\int \frac{1}{u} d u                                    (put u & du)

=\log |u|+c

=\log \left|\sin ^{-1} x\right|+c

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