\( \int_{0}^{\frac{\pi}{2}} \frac{\cos x \, dx}{\sqrt{4 - \sin^2 x}} = ? \)

A \( \frac{\pi}{3} \)

B \( \frac{\pi}{6} \)

C \( \frac{\pi}{4} \)

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

Solution

Correct Answer: Option B

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