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TS EAMCET · Maths · Definite Integration

\(\int_{\pi / 4}^{\pi / 2} \frac{3 d x}{1+e^{\sqrt{8} \sin \left(x-\frac{3 \pi}{8}\right)}}=\)

  1. A \(\frac{3 \sqrt{2}}{4} \pi\)
  2. B \(\frac{3}{4} \pi\)
  3. C \(\frac{\pi}{8}\)
  4. D \(\frac{3}{8} \pi\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\frac{3}{8} \pi\)

Step-by-step Solution

Detailed explanation

Let \(I=\int_{\pi / 4}^{\pi / 2} \frac{3 d x}{1+e^{\sqrt{8} \sin \left(x-\frac{3 \pi}{8}\right)}}\) ...(i)…