.If \[\cos A=\frac{3}{4}\], then \[32\sin \frac{A}{2}\cos \frac{5}{2}A=\] [EAMCET 1982]

.If \[\cos A=\frac{3}{4}\], then \[32\sin \frac{A}{2}\cos \frac{5}{2}A

1.	.If \[\cos A=\frac{3}{4}\], then \[32\sin \frac{A}{2}\cos \frac{5}{2}A=\] [EAMCET 1982]
A.	\[\sqrt{7}\]
B.	\[-\sqrt{7}\]
C.	7
D.	-7
Answer» C. 7

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.If \[\cos A=\frac{3}{4}\], then \[32\sin \frac{A}{2}\cos \frac{5}{2}A=\] [EAMCET 1982]

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