A line in the plane of a triangle

intersects the sides

and

respectively at points

and

such that

. Find the locus of the center of the circumcircle of triangle
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A line in the plane of a triangle $ABC$ intersects the sides $AB$ and $AC$ respectively at points $X$ and $Y$ such that $BX = CY$ . Find the locus of the center of the circumcircle of triangle $XAY .$