Ok, I got that one finally.
How about this one?
\int x^{2}sinx/1+x^{6} dx
I tried u=sinx, but got stuck. Is that what I need to use? Any help would be appreciated.
Ah ok, that was my biggest problem. I tried substituting u=1+cos^2x and u=sinx. But neither yielded the result I wanted.
So I will try using just u=cosx and see how that works for me.
Homework Statement
Find the antiderivative F of f that satisifies the given condition. Check by comparing the graphs of f and F.
f(x)=4-3(1+x^2)^-1
F(1)=0
Homework Equations
The Attempt at a Solution
So far what I attempted to do was this:
F(x)=4x -3tan^-1(x) + C
but...