Question:medium

If \( \cos A = \frac{3}{4} \), then \( 32 \sin \frac{A}{2} \sin \frac{5A}{2} = \text{?} \)

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Use the half-angle and multiple-angle identities to simplify trigonometric expressions.

Updated On: May 5, 2026

7
16
11
8

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The Correct Option is C

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