If y=tan^(-1)[(logex)/(log (e/x))] + ta...

If `y=tan^(-1)[(logex)/(log (e/x))] + tan^(-1)[(8-logx)/(1+8 logx)]`, then `(d^(2)y)/(dx^(2))` is

A

1

B

`1/2`

C

`-1`

D

0

Verified by Experts

The correct Answer is:

D

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