1.

A circle of radius 2 units rolls inside the ring of the circle x^(2)+y^(2)+8x-2y-19=0 then the locus of its centre is

Answer»

`X^(2)+y^(2)+8x+2y-47=0`
`x^(2)+y^(2)+8x-2y-1=0`
`x^(2)+y^(2)+8x-2y+1=0`
`x^(2)+y^(2)-8x+2y+1=0`

ANSWER :C


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