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TS EAMCET · Maths · Indefinite Integration

If \(\int \sin ^{-1}\left(\sqrt{\frac{x}{a+x}}\right) d x=A(x)+\) constant, then \(A(x)=\)

  1. A \(\operatorname{atan}^1 \sqrt{\frac{x}{a}}+a x\)
  2. B \(\frac{1}{\sqrt{a+x}} \tan ^1 \sqrt{\frac{x}{a}}-\sqrt{a x}\)
  3. C \((a+x) \tan ^1 \sqrt{x}+a \sqrt{x}\)
  4. D \((a+x) \tan ^1 \sqrt{\frac{x}{a}}-\sqrt{a x}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \((a+x) \tan ^1 \sqrt{\frac{x}{a}}-\sqrt{a x}\)

Step-by-step Solution

Detailed explanation

Let \(I=\int \sin ^2 \sqrt{\frac{x}{a+x}} d x\) Put \(x=a \tan ^2 \theta \Rightarrow d x=2 a \tan \theta \sec ^2 \theta d \theta\)…