1.

Showthat the circles x^(2) +y^(2) - 2x - 4y - 20 = 0 and x^(2) + y^(2) + 6x +2y- 90=0touch each other . Find the coordinatesof the pointof contactand the equation of the commontangent .

Answer»


ANSWER :`4X + 3Y - 35 = 0`


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