Unformatted text preview: ways. 4: What does it mean geometrically if Â±a Â· ( Â± b Ã— Â± c ) = 0. 5: Let Â±a, Â± b âˆˆ R n , Â±a Â± = Â± 0. Prove algebraically that proj Â±a Â± b Â· perp Â±a Â± b = 0. 1...
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 Winter '08
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 Math, Euclidean geometry, Parallelogram

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