1. ## help with proofs

show that integral Upper limit 1 and lower limit 0 of dx/(1+e^x)(1+e^-x) is equal to 1/2tanh(1/2x)

2. Originally Posted by michaelmike121
show that integral Upper limit 1 and lower limit 0 of dx/(1+e^x)(1+e^-x) is equal to 1/2tanh(1/2x)
Hint: express tanh(x) as a function of ex.

If you are stuck at the beginning tell us and we'll start with the definitions.

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