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Vectors - Perpendicular Projection and Reflection in a Plane

Vectors - Perpendicular Projection and Reflection in a Plane

Find the coordinates of the foot of perpendicular of point \(3\mathbf{i}+\mathbf{j}-9\mathbf{k}\) to the plane \(3x+y-z=-3\)

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Answer:\((-3,-1,-7)\)

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