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The value of \(\cos 15^{\circ} \cos 7 \frac{1}{2} \sin 7 \frac{1^{\circ}}{2}\) is
(A) \(\frac{1}{2}\)
(B) \(\frac{1}{8}\)
(C) \(\frac{1}{4}\)
(D) \(\frac{1}{16}\)

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