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MHT CET 2025 Mathematics question

MathematicsSolution of TrianglesMHT CET 2025

Not in JEE syllabus

In a triangle ABC with usual notations.

Answer: (A)

Solution

With inradius , , , (standard half-angle results, e.g. ). Adding: . Since , , so the sum is $Missing argument for \frac\frac

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Question ID VK-102573