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JEE Advanced Mathematics question

MathematicsSolution of TrianglesJEE Advanced

Not in JEE syllabus

If in a triangle, and are the circumradius and inradius respectively then the HM of the exradii of the triangle is

Answer: (A)

Solution

etc., so

Missing argument for \frac\frac1{}+Missing argument for \frac\frac1{}+Missing argument for \frac\frac1{}=Missing argument for \frac\frac{(s-a)+(s-b)+(s-c)}{

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Question ID VK-108727