Evaluate: `int1/(x\ (x^n+1))\ dx`

Options

A. (a) `logabs(x^(n)/(x^(n)+1))+c`
B. (b) `1/nlogabs(x^(n)/(x^(n)+1))+c`
C. (c) `1/(2n)logabs(x^(n)/(x^(n)+1))+c`
D. (d) `1/(2n)logabs((x^(n)+1)/x^(n))+c`

Answer

B