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If cos A=3/4 then the value of sin(A/2)...

If `cos A=3/4` then the value of `sin(A/2) sin((5A)/2)` is

A

`(sqrt11)/(16)`

B

`-(sqrt11)/(16)`

C

`(11)/(16)`

D

`-(11)/(16)`

Text Solution

Verified by Experts

The correct Answer is:
C
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TARGET PUBLICATION-FACTORIZATION FORMULAE-CRITICAL THINKING
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