Wednesday, January 20, 2021

1635.

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1 comment:

  1. Dr. Abdilkadir AltıntaşJanuary 20, 2021 at 7:50 PM

    *Interestingly, Let H'_A, H'_B,H'_C isotomic conjugates of H_A, H_B,H_C respect to ABC. Than AH'_A, BH'_B, CH'_C concur. Concurrency point is isotomic conjugate of X.

    ** If H''_A, H''_B, H''_C are X(69) points of their triangles AH''_A, BH''_B, CH''_C concur.

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