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Three circles with different radii touch one another externally. The tangents at their points of contact meet at a point whose distance from a point of contact is 4 where ratio of the product of the radii to the sum of the radii of circles is λ2:1. Then the value of |λ| is

Answer» Three circles with different radii touch one another externally. The tangents at their points of contact meet at a point whose distance from a point of contact is 4 where ratio of the product of the radii to the sum of the radii of circles is λ2:1. Then the value of |λ| is


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