The length of a common internal tangent of two circles is 5 and that of a common…

MATHEMATICS · Subjective · ISC · Mathematics · Algebra · Cube roots of unity

Problem

The length of a common internal tangent of two circles is 5 and that of a common external tangent is 13. If the product of the radii of two circles is λ\lambda , then the value of λ4\frac{\lambda}{4} is

Related theory

Browse the problem library