# Math Help - Find the antiderivative

1. ## Find the antiderivative

I just need a little help finding the antiderivative of these 2 functions:

1) f(x) = e^(u+1)

2) f(x) = sec^2(2x)

Any help is appreciated!

2. Originally Posted by REWIND10
I just need a little help finding the antiderivative of these 2 functions:

1) f(x) = e^(u+1)

2) f(x) = sec^2(2x)

Any help is appreciated!
For the first substitute $v=u+1$, then $dv=du$ and you have $F(u)=\int{e}^{(u+1)}du=\int{e}^vdv=e^v+C$. Now back substitute.

For the second, let $u=2x$ ...