If the points of intersection of the ellipses and lie on a circle of radius r and centre , then the value of is
- (A)53
- (B)51
- (C)52
- (D)55✓ Correct
Answer: (D)
Solution
Any conic through the common points is . For a circle the coefficients of and must agree: , so . Then , i.e. . The centre is , so and , and . Therefore .
JEE Main · 2026 · 23 Jan 2026 · Shift 2 · Single correct option