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A circle touches the line L and the cir...

A circle touches the line L and the circle `C_1` externally such that both the circles are on the same side of the line, then the locus of centre of the circle is (a) Ellipse (b) Hyperbola (c) Parabola (d) Parts of straight line

Text Solution

Verified by Experts

`C_1C_2=r_1+r_2`
`C_1C_2=C_2D`
option C is correct.
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