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    Orthogonal Vectors

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    1) For which values of k are the following vectors u and v orthogonal?

    a) u = (2,1,3) , v = (1,7,k)

    b) u = (k,k,1) , v = (k,5,6)

    2) Let u,v be orthogonal unit vectors. Prove that d(u,v) = 2^(1/2)

    (The questions are unrelated)

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    Solution Summary

    We solve two problems involving orthogonal vectors.