Let F(x)=e^x,G(x)=e^(-x) " and " H(x)=G(...

Let `F(x)=e^x,G(x)=e^(-x) " and " H(x)=G(F(x))`, where x is a real variable.
Then `(dH)/(dx)` at x=0 is

A

1

B

-1

C

`-1/e`

D

`-e`

Verified by Experts

The correct Answer is:

C

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