1.

(i) Find the equation of circle which touches x^(2)+y^(2)-4x+6y-12=0 at (-1,1) internally with a radius of 2. (ii) Find the equation of circle which touches x^(2)+y^(2)-2x-4y-20=0 externally at (5,5) with radius of 5.

Answer»


ANSWER :(i) `5X^(2)+5Y^(2)-2x+6y-18=0`
(II) `x^(2)+y^(2)-18x-16y+120=0`


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