Calculus Practice

[GeneG83]

Hey, I'd like to get brush up on my math skills a bit. I actually used to tutor calculus at my college and got extremely good at it but its been about a year since Ive even looked at it and could use some work.

Im going off to finish my BA in engineering in a month and would like to refresh my mind a bit but I packed up all my books already and have them stored so if anyone knows a good site with plenty of practice problems with solutions and some brief lectures as well (basically an online textbook of sorts) that would be great!

P.S. Im interested mostly in the various intergration techniques, multi-variable calculus, and infinite series.

Thanks.

[ydoaPs]

a quick google gave this, this, and this.