Use vectors to decide whether the triangle with vertices P(1, -3, -2), Q(2, 0, -4), and R(6,
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Use vectors to decide whether the triangle with vertices P(1, -3, -2), Q(2, 0, -4), and R(6, -2, -5) is right-angled.
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QP 1 32 QR 4 2 1 and QP ...View the full answer
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