Presents refinements of the Erdős–Mordell inequality, suggesting stronger geometric bounds in triangles.
SummaryIn this paper, we present several refinements of the classical Erdős–Mordell inequality. Our method relies on applying the Cauchy–Schwarz inequality in trigonometric form, which allows us to strengthen certain classical geometric inequalities in triangles and obtain sharper bounds.
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Quang Hung Tran (2026) studied this question.
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