22. If the points P(-3, 9), Q(a, b) and R(4,-5) are collinear and a+bC – InterviewSolution

1.	22. If the points P(-3, 9), Q(a, b) and R(4,-5) are collinear and a+bCBSE 20144(0 -. B(2, 1) and C(0, 3. Alsofind the values of a and b.
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