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If y=cos^(2)""(x)/(2), the value of (dy)...

If `y=cos^(2)""(x)/(2)`, the value of `(dy)/(dx)` is

A

`cosx`

B

`(1)/(2)cosx`

C

`-(1)/(2)sinx`

D

`-sinx`

Text Solution

Verified by Experts

The correct Answer is:
(C)
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