If y=e^(tan x), then cos^2 x(d^2y)/(dx^2...

If `y=e^(tan x)`, then `cos^2 x(d^2y)/(dx^2)` is equal to

A

`(1-sin 2x)(dy)/(dx)`

B

`-(1+ sin 2x) (dy)/(dx)`

C

`(1+ sin 2x)(dy)/(dx)`

D

`(sin 2x-1)(dy)/(dx)`

Verified by Experts

The correct Answer is:

C

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