[23" If a circle c passing through any p...

[23" If a circle c passing through any point "(4,0)" touches the circle "x^(2)+y^(2)+4x-6y-12=0" extemally ata "],[" point "(1,-1)" then what will be the radius of the circle? "]

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If a circle C passing through the point (4,0) touches the circle x^(2)+y^(2)+4x-6y=12 externally at the point (1,-1) ,then the radius of C is

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lf a circle C passing through (4,0) touches the circle x^2 + y^2 + 4x-6y-12 = 0 externally at a point (1, -1), then the radius of the circle C is :-

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