Question

Please help, how do I integrate the following problem?

(e^-x)sin(e^x)

Answer 1

\[\int\limits_{}^{}e ^{-x}\sin(e ^{x})dx\]

Answer 2

should i try integration by parts?

Answer 3

Substitute u = e^x
and du = e^x dx

Answer 4

then dx=du/(e^x)