Question

How could you solve the intregal dx/xln(x) using the substitution method?

Answer 1

substitute xln(x) by u

Answer 2

Because if u=lnx, than du=(1/x)dx, so it equals ∫(1/u)du, with is ln(u), or ln(lnx)+c

Answer 3

Let u = lnx

Answer 4

omg, im noob :)
Mine solution is pretty long and inefective