1.

If the length of the tangent from (h,k) to the circle x^(2)+y^2=16 is twice the length of the tangent from the same point to the circle x^(2)+y^(2)+2x+2y=0, then

Answer»

`h^(2)+K^(2)_4h+4k+16=0`
`h^(2)+k^(2)+3H+3K=0`
`3h^(2)+3k^(2)+8y+8k+16=0`
`3h^(2)+3k^(2)+4h+4k+16=0`

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