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Find area of triangle PQR where P (1,4, 6) Q ( -2, 5,-1), R = (1,-1,1) (ii) show a-> = (1,4,-7) , b-> = (2,-1,
Find area of triangle PQR where P (1,4, 6) Q ( -2, 5,-1), R = (1,-1,1) (ii) show a-> = (1,4,-7) , b-> = (2,-1, 4) , c-> = (0,-9,18)
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