Don't worry about what Wolfram was giving you. It's just an alternative form of the same value.
Is there an intuitive way to do it using integration techniques or do I have to memorize this: integral secx - Wolfram|Alpha ?
Any input would be appreciated!
Thanks in advance!
Edit: Nevermind, I forgot that this is one of the integrals I'm supposed to have memorized as ln|sec(x) + tan(x)|.
Edit #2: Actually, my problem is because of the interval; how do I evaluate this integral over this specific interval?: http://www.wolframalpha.com/input/?i...om+0+to+pi%2F4
There is also the Weierstrass sub - see also the cosec entry above it for a little more info.