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[" 10.If a circle of constant radius "3k...

[" 10.If a circle of constant radius "3k" passes through the origin "0" " and meets co-ordinate axes at "A" and "B" then the "],[" locus of the centroid of the triangle OAB is "-(3k^(2)+y^(2)=(4k)^(2)],[[" (A) "x^(2)+y^(2)=(2k)^(2)," (B) "x^(2)+y^(2)=(3k)^(2),(C)x^(2)+y^(2)=(4k)^(2)," (D) "x^(2)+y^(2)=(6k)^(2)]]

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