Unformatted text preview: N . If two planes are perpendicular then they their direction vectors N 1 , N 2 satisfy the equation N 1 Â· N 2 = 0, and thereâ€™s not much more that you can say. If two vectors A , B both are parallel to a plane then A Ã— B has same direction vector N as the plane, so you can take A Ã— B = N . If two points P, P both lie on a plane then P P is parallel to the plane. You can say that N Â· P P = 0 If a line with direction A is perpendicular to a plane then N and A are parallel vectors. You can say that N = A ....
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 Spring '07
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 Multivariable Calculus, Vectors, Vector Space, direction vectors N1

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