Find the measure of given:

MATHEMATICS · Multi-part · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Find the measure of PQR^\widehat{PQR} given: (1) P(0,2,−2)P(0, 2, -2) , Q(3,−1,−4)Q(3, -1, -4) , R(4,0,−1)R(4, 0, -1) (2) P(−3,2,1)P(-3, 2, 1) , Q(5,0,1)Q(5, 0, 1) , R(−3,−1,2)R(-3, -1, 2) .

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