An Area Ratio Near the Incenter

Problem

An equilateral triangle ABCABC has incircle of radius 22 centered at II. A point PP satisfies PI=1PI=1. Find the maximum value of the ratio of the areas of APB\triangle APB and APC\triangle APC.

Answer

Solution

Difficulty7/10
Topicsplane geometry, trigonometry, Extrema, Trigonometric Identities, Triangle Geometry

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