Recent content by bigred09

right i actually forgot the coefficient 8 but that doesn't mess with the integral. and dx=sec\theta tan\theta so what halls said wass valid. all i did was simplify it more. even more so it looks like this: 8\int \frac{cos^5\theta}{sin^3\theta} d\theta so uh...seriously...any ideas...

ok well with trig substitution, i get \int tan^2\theta sec^3\theta d\theta which doesn't help me. Can someone solve this integral then?

ok i have been studying the in-depth processes of trigonometric substitution with integrals and this problem has me frusterated. \int x^2\sqrt{(x^2-4)} dx The evaluation is clear (from an old Table of Integrals I found), but the derivation is not at all clear, which is what i want to know. I...