A unit vector perpendicular to the plane determined by the points P(1, – InterviewSolution

1.	A unit vector perpendicular to the plane determined by the points P(1,-1,2), Q(2,0,-1) and R(0,2,1) is
Answer» A unit vector perpendicular to the plane determined by the points P(1,-1,2), Q(2,0,-1) and R(0,2,1) is

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