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SHARYGIN 2022 Problem 93

    A medial line parallel to the side ACAC of triangle ABCABC meets its circumcircle at points at XX and YY . Let II be the incenter of triangle ABCABC and DD be the midpoint of arc ACAC not containing BB .A point LL lie on segment DIDI in such a way that DL=BI/2DL= BI/2 . Prove that ∠IXL=∠IYL\angle IXL = \angle IYL .

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