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Question Number 176095 by Shrinava last updated on 12/Sep/22

In  △ABC  the following relationship holds:  an_a  ≥ (s (b + c) − 2bc) cos (A/2)

$$\mathrm{In}\:\:\bigtriangleup\mathrm{ABC}\:\:\mathrm{the}\:\mathrm{following}\:\mathrm{relationship}\:\mathrm{holds}: \\ $$$$\mathrm{an}_{\boldsymbol{\mathrm{a}}} \:\geqslant\:\left(\mathrm{s}\:\left(\mathrm{b}\:+\:\mathrm{c}\right)\:−\:\mathrm{2bc}\right)\:\mathrm{cos}\:\frac{\mathrm{A}}{\mathrm{2}} \\ $$

Commented by a.lgnaoui last updated on 12/Sep/22

  n_a   ?

$$ \\ $$$$\mathrm{n}_{\mathrm{a}} \:\:? \\ $$

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