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AP EAMCET · Maths · Definite Integration

\(\int_0^{\frac{\pi}{4}} \frac{\sin x+\cos x}{3+\sin 2 x} d x\) is equal to

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

Answer & Solution

Correct Answer

(D) \(\frac {1}{4} \log 3\)

Step-by-step Solution

Detailed explanation

Let \(I=\int_0^{\pi / 4} \frac{\sin x+\cos x}{3+\sin 2 x} d x\) Put \(\sin x-\cos x=t\) \((\sin x+\cos x) d x=d t\) Limits:…