Question

Find the integral of x^2 +1 / x^3+3x

Answer 1

this?

\[\int\frac{x^2+1}{x^3+3x}dx\]

Answer 2

yes

Answer 3

\[u=x^3+3x\]

Answer 4

and how do i do it after that ?

Answer 5

\[du=(3x^2+3)dx\]
\[du=3(x^2+1)dx\]
\[\frac{du}{3}=(x^2+1)dx\]