1.

If P is a point such that the ratio of the square of the lengths of the tangents from R to the circles x^(2) + y^(2) + 2x - 4y - 20 = 0 and x^(2) + y^(2) - 4x + 2y - 44 = 0 is 2 : 3, then the locus of P is a circle with centre

Answer»

(7, -8)
(-7, 8)
(7, + 8)
(-7, -8)

ANSWER :B


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