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int(e^(2x)+2e^x-e^(-x)-1)e^(e^x+e^(-x))d...

`int(e^(2x)+2e^x-e^(-x)-1)e^(e^x+e^(-x))dx=g(x)e^(e^x+e^(-x))` , then find `g(0)`.

A

`e`

B

`e^(2)`

C

`1`

D

`2`

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