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d/(dx)[(tanx-cotx)/(tanx+cotx)]=...

`d/(dx)[(tanx-cotx)/(tanx+cotx)]=`

A

`2 sin2x`

B

`-2sin2x`

C

`2 cos2x`

D

`-2 cos 2x`

Text Solution

Verified by Experts

The correct Answer is:
A
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