Question 78
Let $ABC$ a triangle, $\Gamma$ its circumscribed circle and $\Omega$ another circle passing through the dots $A$ and $B$. The right $(AC)$ cuts the circle $\Omega$ at a point $D$ and the tangent to the circle $\Gamma$ in $B$ cuts $\Omega$ to a point $E$. Show that the lines $(BC)$ and $(DE)$ are parallel. 