mathematics

Find the equation of a straight line which passes through the point P(3,1,-2) and is perpendicular to the planes L1 and L2, where

L1 : x - 3y + 2z = 2,
L2 : 2x + y - 2z = 5.

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  1. find a line in each plane
    the cross product of those two vectors is perpendicular to them both.

    Then translate the vector so it passes through P.

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    posted by Steve

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