For three points

MATHEMATICS · Single correct · CBSE · Mathematics · Coordinate Geometry · Coordinate Geometry

Problem

For three points P,Q,RP, Q, R, the value of xP(yQ−yR)+xQ(yR−yP)+xR(yP−yQ)x_P(y_Q- y_R)+ x_Q(y_R- y_P)+ x_R(y_P- y_Q) is found to be −18-18. What can you conclude about the order of P,Q,RP, Q, R? (a) They are collinear (b) They are arranged clockwise (c) No conclusion can be drawn (d) They are arranged counter-clockwise

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