- #1

karush

Gold Member

MHB

- 3,269

- 5

$a.\quad \tan^{-1}e^x+C$

$b.\quad 1+e^x-\ln(1+e^1)+C$

$c.\quad x-x+\ln |1+e^x|+C$

$d.\quad e^x+\frac{1}{(e^x+1)^2}+C$

$e.\quad {none}$

ok I was going to use $u=1+e^x\quad du=e^x dx$ but maybe not best

btw I tried to use array on the choices but its was all underlined in preview