\( \int_{0}^{1} \sqrt{\frac{1-x}{1+x}} dx \) = কত?

A \( \frac{\pi}{2}+1 \)

B \( \pi \)

C \( \frac{\pi}{2}-1 \)

D \( \frac{\pi}{2}-2 \)

Solution

Correct Answer: Option C

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