Question

Choose the correct alternative:

The value of `int_(-4)^4 [tan^-1  ((x^2)/(x^4 + 1)) + tan^-1 ((x^4 + 1)/x^2)] "d"x` is

पर्याय

• `pi`

• `2pi`

• `3pi`

• `4pi`

Answer 1

`4pi`