1.

A plane passes through the points A(1,2,3),B(2,3,1) and C(2,4,2). If O is the origin and P is (2,−1,1), then the projection of −−→OP on this plane is of length :

Answer»

A plane passes through the points A(1,2,3),B(2,3,1) and C(2,4,2). If O is the origin and P is (2,1,1), then the projection of OP on this plane is of length :



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