Question

Evaluate integral of e^-x/(9e^(-2x)+1)^3/2 using trig substitutions

Answer 1

sub \(\tan u = 3e^{-x} \)
then, \(\tan^2 u = 9e^{-2x}\)

Answer 2

Alright I'll try that

Answer 3

goodluck ! its going to be an easy one :)

Answer 4

Thank you