Question

I need help with calculus 2 integrals

Answer 1

\[\int\limits_{}^{}\frac{ sech(\ln(x))\tanh(\ln(x)) }{ x } dx\]

Answer 2

did you try u = ln x

Answer 3

du = 1/x dx

Answer 4

What do I do with the sech and tanh though or do I just leave them there?

Answer 5

now look for the integral of sech tanh

Answer 6

what is the derivative of sech ?

Answer 7

-sechxtanhx

Answer 8

so use that