Let P 1 and P 2 be planes with normal vectors n 1 and n 2 .
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Let P1 and P2 be planes with normal vectors n1 and n2. Assume that the planes are not parallel, and let L be their intersection (a line). Show that n1 × n2 is a direction vector for L.
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A vector which is normal to a plane is orthogonal to all the vectors in the plane Since ...View the full answer
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