TS EAMCET · Maths · Circle
The vertex of the parabola is at the centre of a circle and the parabola cuts that circle at the ends of its latus rectum. Then the equation of that circle is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
(y-1)2=8(x-1) Vertex→(1,1) Circle (x-1)2+(y-1)2=α2 Extremities of Lotus rectum →(3,5) It satisfies circle 22+42=α2 ⇒α2=20 x2+y2-2x-2y-18=0
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