Recent content by master1425

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 \int sinx/(1+cos^{2}x)dx Can anyone help me with this problem?

Ok so my F(x) is correct? That was probably the part I needed the most assurance with.

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...