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If y=cos^(-1) (1-2 sin^(2) x),"then " dy...

If `y=cos^(-1) (1-2 sin^(2) x),"then " dy/dx=`

A

`2`

B

`-2`

C

`1`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
A
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