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Omni-MATH / In triangle ABC, let J be the center of the excircle tangent to side BC at A₁ and to the extensions of the sides AC and AB at B₁ and C₁ respectively. Suppose that the lines A₁B₁ an… · Discussion

Discussing In triangle ABC, let J be the center of the excircle tangent to side BC at A₁ and to the extensions of the sides AC and AB at B₁ and C₁ respectively. Suppose that the lines A₁B₁ an… · Omni-MATH

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