1.

Using distance formula prove that the following points are collinear (i) A(4, -3, -1), B(5, -7, 6) and C(3, 1, -8) (ii) P(0,7, -7), Q(1, 4, -5) and R(-1, 10, -9) (iii) A(3, -5, 1), B(-1, 0, 8) and C(7, -10, -6)

Answer»

Using distance formula prove that the following points are collinear

(i) A(4, -3, -1), B(5, -7, 6) and C(3, 1, -8)

(ii) P(0,7, -7), Q(1, 4, -5) and R(-1, 10, -9)

(iii) A(3, -5, 1), B(-1, 0, 8) and C(7, -10, -6)



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