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MATH / Let C₁ and C₂ be circles defined by (x−10)²+y²=36 and (x+15)²+y²=81 respectively. What is the length of the shortest line segment PQ that is tangent to C₁ at P and to C₂ at Q? · Discussion

Discussing Let C₁ and C₂ be circles defined by (x−10)²+y²=36 and (x+15)²+y²=81 respectively. What is the length of the shortest line segment PQ that is tangent to C₁ at P and to C₂ at Q? · MATH

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