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If cos A=3/4 then 32 "sin"A/2."sin"(5A)/...

If `cos A=3/4` then `32 "sin"A/2."sin"(5A)/2=`

A

10

B

`-10`

C

`11`

D

`13`

Text Solution

Verified by Experts

The correct Answer is:
C
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