`intdx/(x^2+1)^2`

intdx/(x^2+1)^4

intdx/(x^2-9)

intdx/(x^3-1)

intdx/(e^x-1)^2

intdx/(e^x-1)

Evaluate intdx/(x^(2)+25

intdx/((x+1)^2(x^2+1))

intdx/((x^2-1)sqrt(x^2+1))

intdx/((x+1)(x^2+2x+2))

In each of the following,fill in the blank so that the resulting sentence becomes true. intdx/(1+x^2)^(3//2) =______.