Wolframalpha

Hey, so this is an amazing site that my aunt gave me, you enter a problem... and it solves it. It also goes through all of the steps... Try putting in cos(a)+(1/(sin)) (just type it in, no equation editor or anything of that sort) and see what you get... It's pretty nifty...

Well here y'all go:
http://www.wolframalpha.com/