1.

What is the value of \(\sin \frac{{\rm{A}}}{2}\sin \frac{{\rm{B}}}{2}\sin \frac{{\rm{C}}}{2}{\rm{\;}}?\)

A. \(\frac{1}{2}\)
B. \(\frac{1}{4}\)
C. \(\frac{1}{8}\)
D. \(\frac{1}{{16}}\)
Answer» D. \(\frac{1}{{16}}\)


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