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  • Explain Solution R.D. Sharma Class 12 Chapter 18 Indefinite Integrals Exercise Revision Exercise Question 99 Maths Textbook Solution.

Explain Solution R.D. Sharma Class 12 Chapter 18 Indefinite Integrals Exercise Revision Exercise  Question 99 Maths Textbook Solution.

Answers (1)

best_answer

Answer:

-\log \frac{(1-x)}{x}-\log |x|+\log |1-x|+c

Hint:

You must know about ILATE

Given:

\int\frac{(\log (1-x))}{x^{2}} d x

Solution:

\int\frac{(\log (1-x))}{x^{2}} d x

\left(\frac{1}{x^{2}}\right) \log \int(1-x) d x \quad \text { (ILATE) }

\log (1-x)\left(-\frac{1}{x}\right)\left(-\frac{1}{1-x}\right)\left(-\frac{1}{x}\right) d x

-\log \frac{(1-x)}{x}-\int \frac{1}{(1-x) x} d x

-\log \frac{(1-x)}{x}-\left(\int \frac{1}{x}+\frac{1}{(1-x)}\right) d x

-\log \frac{(1-x)}{x}-\log |x|+\log |1-x|+c

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