- #1

- 9

- 0

Recently, a friend challenged me to solve the integration of this function:

f(x) = tan^4(x)/cos^3(x)

After about a page of work, i found that i must integrate this:

x^4 / sqrt(x^2 -1)

Simply, the question is:

How can i integrate x^4/sqrt(x^2-1)?