I need to integrate the function 1/(X^7 + x) which simplifies to 1/x(x3 + 1)(x3 - 1) or any other problem where the degree of the denominator is at least 2 larger than the numerator. how do I do this?
I'm not understanding why my answer is wrong
Homework Statement
\inttan^3(x) dx
This is the solution I've been getting for this problem, but I notice you get a different answer when you let u = tan(x) and du = sec^2(x) dx
Homework Equations
tan^2(x) = (sec^2(x) - 1)
The Attempt at a Solution...