okay, so now I've got:
(2) integral sec(t) - cos(t)
Do I go ahead and take the integral at this pont? the integral of sec(t) involves (ln) and I don't believe that to be correct.
Im not forgetting about the dx. I have been working on this for 2 hours now, please give me a little more than that. Here is what I have so far that I believe to be right:
(2)integral tan^2(theta) / sec(theta)
integrate (x^2) / (4+x^2)^(3/2)
Im not allowed to apply hyperbolic functions to this and have been trying to solve applying to a 90 deg. angle.
x = 2tan(theta)
x^2 = 4tan^2(theta)
dx = 2 sec^2(theta)
Hopefully you can se where I am going with this (trigonomic substitution)
Im...
This is a problem from my homework set.
I'm so close but I'm tangled up at the end...
Integrate/ x arccos(x)dx
So far I am at
(x^2)/2 arccosx - Int/ (x^2)/ (2 sqrt(x^2 - 1))
Can figure out how to integrate this part.