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If a given line is tangent to the circle then perpendicular distance from centre of the circle is equal to radius of the circle solve the following : If 4l^(2)-5m^(2)+6l+1=0 then the director circle of the circle whose tangent is lx + my + 1 = 0 is |
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Answer» `X^(2)+y^(2)+6x-1=0` |
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