`(i) int(e^(x))/(1+e^(x))dx" "(ii) int (e^(x)) /((1+e^(x))^(4))dx`

1.	`(i) int(e^(x))/(1+e^(x))dx" "(ii) int (e^(x)) /((1+e^(x))^(4))dx`
Answer» Correct Answer - `(i) log \|1+e^(x)\|+c (ii) -(1)/(3(1+e^(x))^(3))+c`

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