The centres of those circles which touch the circle, x^ 2 +y^ 2 -E x-E y-4=0 , externally…
Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry
The centres of those circles which touch the circle, \(x^{2}+y^{2}-E x-E y-4=0\), externally and also touch the x-axis, lie on:
- a cirlce
- an ellipse which is not a circle
- a hyperbola
- a parabola
Answer
(D) a parabola
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