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If f(x)=sin""x/2,then the value of f''(p...

If f(x)=`sin""x/2`,then the value of f''(`pi`) is-

A

`-1/2`

B

`1/4`

C

`1/2`

D

`-1/4`

Text Solution

Verified by Experts

The correct Answer is:
D
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