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AP EAMCET · Maths · Indefinite Integration

\(\int \frac{\sqrt{2} \sin x}{\sin \left(x+\frac{\pi}{4}\right)} d x\) is equal to

  1. A \(x+\log \left|\sin \left(x-\frac{\pi}{4}\right)\right|+c\)
  2. B \(x-\log \left|\sin \left(x-\frac{\pi}{4}\right)\right|+c\)
  3. C \(x+\log \left|\sin \left(x+\frac{\pi}{4}\right)\right|+c\)
  4. D \(x-\log \left|\sin \left(x+\frac{\pi}{4}\right)\right|+c\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(x-\log \left|\sin \left(x+\frac{\pi}{4}\right)\right|+c\)

Step-by-step Solution

Detailed explanation

\(\int \frac{\sqrt{2} \sin x}{\sin \left(x+\frac{\pi}{4}\right)} d x\) Let \(x+\frac{\pi}{4}=t \Rightarrow x=t-\frac{\pi}{4}\)…