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    Suppose A(3,-1,0) and B(-4,-2,3) are 2 points in 3-space. Find a vector with the following three characteristics: initial point at the origin, collinear but in the opposite direction of vector AB , length 3

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    Solution Preview

    The vector that is parallel to the line segment connecting A and B has the components
    <-4-3, -2-(-1), 3-0> = <-7,-1,3> ("subtract the beginning from the end").
    If we place the initial point of this ...

    Solution Summary

    Vectors are discussed.