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We have The Missing Piece!
Proof of The Quadratic Formula
Video title: Proof: d/dx(sqrt(x))
An online calculus video that teaches students about proof that d/dx (x^.5) = .5x^(-.5)Now Playing: Proof of The Quadratic Formula
Khan Academy videos are licensed under a Creative Commons 3.0 License. This video is owned and provided free of cost by Khan Academy. Copyright Khan Academy 2010
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