If \({\rm{K}} = \sin \left( {\frac{{\rm{\pi }}}{{18}}} \right)\sin \le – McqOptions

MCQOPTIONS

1.	If \({\rm{K}} = \sin \left( {\frac{{\rm{\pi }}}{{18}}} \right)\sin \left( {\frac{{5{\rm{\pi }}}}{{18}}} \right)\sin \left( {\frac{{7{\rm{\pi }}}}{{18}}} \right)\), then what is the value of K?
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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