Matt Explains: Binomial Coefficients [featuring: choose function, pascal's triangle]
This is a Matt Explains video. Still very much a work in progress. All feedback hugely appreciated.
Sorry about the strobing camera focus on the whiteboard! I seem to be in focus this time, but at the cost of my camera freaking-out over the board. I might need a new camera. Or a camera person. Whichever is cheaper.
Read all about the Binomial Theorem at MathWorld:
http://mathworld.wolfram.com/Binomial...
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