Question

Not a question, but useful websites:

www.wolframalpha.com - if you don't have mathematica, it's the next best thing. does any calculation

www.cramster.com - all homework problems for common university books solved and work shown

http://www.khanacademy.org/ not sure what it is myself, but i hear great things about it. one of my friends learned algebra from it by himself and tested into a higher math class.

Answer 1

Excellent information :D

Answer 2

An example integral to put into wolfram

"Integrate x^2 from 3 to 5"

it'll give u the answer and other useful data like graphs