Q15 of 136 Page 29

Show that the points whose position vectors are and are collinear.

let the given points are A, B, C with position vectors respectively so

We know that equation of line passing through is




….(1)


If A, B, C are collinear then C must satisfy eq. (1)



On comparing the coefficient of on both sides of the equation for all


Hence the points A, B, C are collinear.


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