Introduction to 3DHard
Question
If co-ordinates of points P, Q, R, S are respectively (1, 2, 3), (4, 5, 7); (−4, 3, −6) and (2, 0, 2) then -
Options
A.PQ || RS
B.PQ ⊥ RS
C.PQ = RS
D.None of these
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