The numerical value of \(\sin \frac{\pi }{{18}} \cdot \sin \frac{{5\p – McqOptions

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1.	The numerical value of \(\sin \frac{\pi }{{18}} \cdot \sin \frac{{5\pi }}{{18}} \cdot \sin \frac{{7\pi }}{{18}}\) is
A.	0
B.	\(\frac{1}{8}\)
C.	\(\frac{1}{4}\)
D.	\(\frac{1}{2}\)
Answer» C. \(\frac{1}{4}\)

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