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Math Help - orthogonal projection

  1. #1
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    orthogonal projection

    = (4, -1, 10) and = (-7, 0, 10) be vectors. Find the orthogonal projections of onto .

    How would i go about this?
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  2. #2
    o_O
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    The vector component of \bold{b} orthogonal to \bold{a} is given by: \bold{b} - \text{proj}_{\bold{a}} \bold{b} \ = \ \bold{b} - \frac{\bold{b} \cdot \bold{a}}{|\bold{a}|^2}\bold{a}

    Just a matter of calculations from there.
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