Problem is I don't know the integral of 24sec(2x) I know sec^2(x) becomes tan(x). Thats where I was getting stuck, I put the full equation out so that I could check if I had expanded correctly.
Problem is I don't know the integral of 24sec(2x) I know sec^2(x) becomes tan(x). Thats where I was getting stuck, I put the full equation out so that I could check if I had expanded correctly.
The integral of the secant of x is a tricky one that is hard to see if you don't know it. Consider $\displaystyle \sec(x) * \frac{\sec(x)+\tan(x)}{\sec(x)+\tan(x)}$ and make a u-substitution. Hint:the answer contains a natural log.