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If a point P is moving such that the length of tangents drawn from P to x^(2) + y^(2) - 2x + 4 y - 20= 0"___"(1). and x^(2) + y^(2) - 2x - 8 y +1= 0"___"(2). are in the ratio 2:1 Then show that the equation of the locus of P is x^(2) + y^(2) - 2x - 12 y +8= 0 |
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