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Let y = ln (1+cosx)^2 . Then the value o...

Let y = `ln (1+cosx)^2` . Then the value of `(d^2y)/(dx^2)+2/(e^(y//2)` equals

A

0

B

`2/(1+cosx)`

C

`4/(1+cos x)`

D

`(-4)/((1+cosx)^2)`

Text Solution

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The correct Answer is:
A
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