MHTCET 13 May 2023 Shift 2 Solved Paper

Section: Mathematics

Question : 54 of 150

Marks: +1, -0

A tetrahedron has vertices at P(2,1,3),Q(−1,1,2),R(1,2,1) and O(0,0,0), then angle between the faces OPQ and PQR is

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