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If cosA=3/4, then 32 sin (A/2) sin ((5...

If cosA=3/4, then 32 sin (A/2) sin ((5A) /2)= ------------- (A) √11 (B) -√11 (C) 11 (D) -11

A

`1/32`

B

`11/8`

C

`11/32`

D

`11/16`

Text Solution

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The correct Answer is:
C
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OBJECTIVE RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
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