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JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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Application +4 | -1
In a Δ ABC\Delta \,ABC, the HM of the ex-radii is equal to
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Correct option: A
3 r3\,r
Option A (3r3r) is correct because the harmonic mean of the ex-radii is equal to 3r3r, where rr is the inradius of the triangle.

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