JEE Main 2026 Mathematics question
Let P(3cosα, 2sinα), α≠0, be a point on the ellipse x²/9+y²/4=1, Q be a point on the circle x²+y²−14x−14y+82=0 and R be a point on the line x+y=5 such that the centroid of the triangle PQR is . Then the sum of the ordinates of all possible points R is:
Answer: (D)
Solution
The centroid condition forces Q+R = (6,9) independent of α. With R on x+y=5, Q must satisfy Qx+Qy=10 while lying on
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