The normals at three points ,

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

The normals at three points PP, QQ, and RR of the parabola y2=4axy^2=4ax meet at (h,k)(h,k). The centroid of △PQR\triangle PQR lies on (1) x=0x=0 (2) y=0y=0 (3) x=−ax=-a (4) y=ay=a

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