[" The locus of the centre of a circle t...

[" The locus of the centre of a circle touching the circle "x^(2)+y^(2)-4y-2x=4" internall "],[" which from "(1,2)" is making a "60^(@)" angle with each other."],[[" (A) "(x-1)^(2)+(y-2)^(2)=2," (B) "(x-1)^(2)+(y-2)^(2)=4],[" (C) "(x+1)^(2)+(y-2)^(2)=4," (D) "(x+1)^(2)+(y+2)^(2)=4]]

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[" The locus of the centre of a circle touching the circle "x^(2)+y^(2)-4y-2x=4" internall "],[" which from "(1,2)" is making a "60^(@)" angle with each other."],[[" (A) "(x-1)^(2)+(y-2)^(2)=2," (B) "(x-1)^(2)+(y-2)^(2)=4],[" (C) "(x+1)^(2)+(y-2)^(2)=4," (D) "(x+1)^(2)+(y+2)^(2)=4]]

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