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AP EAMCET · Maths · Indefinite Integration

If \(\int \frac{\sqrt[4]{x}}{\sqrt{x}+\sqrt[4]{x}} d x=\frac{2}{3}\left[A \sqrt[4]{x^3}+B \sqrt[4]{x^2}+C \sqrt[4]{x}+D \log (1+\sqrt[4]{x})\right]+K\) then \(\frac{2}{3}(A+B+C+D)=\)

  1. A \(\frac{2}{3}\)
  2. B \(-\frac{2}{3}\)
  3. C \(\frac{4}{3}\)
  4. D \(-\frac{4}{3}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(-\frac{2}{3}\)

Step-by-step Solution

Detailed explanation

Let \(I=\int \frac{\sqrt[4]{x}}{\sqrt{x}+\sqrt[4]{x}} d x\) Let \(u=\sqrt[4]{x} \Rightarrow d u=\frac{1}{4 x^{3 / 4}} d x\) and \(\sqrt{x}=u^2 \Rightarrow x=u^4\)…