- #1

Bazzinga

- 45

- 0

I've already subbed in:

[tex] x = 2tan\theta [/tex]

[tex] dx = 2sec^{2}\theta d\theta [/tex]

and I've gotten down to:

[tex] 16 \int tan^{3}\theta sec^{3}\theta d\theta [/tex]

But now I have noo idea what to do! Can someone give me a hint?