Precalculus For Dummies

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Does anyone know a good book or good site, maybe like dummies for precalculus, to help me understand?!?

These video's should help: http://www.youtube.com/watch?v=EX_is9LzFSY && http://www.youtube.com/watch?v=Q9OkFTDG4fY

As well as the book 'Quick Calculus' by Daniel Kleppner

RHS Pre-Calculus Presents: Hyperbolas for Dummies (take 2).MP4


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