Question

Integrate :-

Answer 1

Maybe try like this:
\(\large\int \frac{x}{1+(x^2)^2} dx\)
then make substitution:
x^2=u
now differentiate:
2xdx=du, so xdx=1/2du
Put this in the integral and it should be easy to finish , :)

Answer 2

Let me know, @goformit100 if you need more help