Question 83
Let $ABC$ be a triangle, $\Gamma$ its circumcircle, $I$ its incenter, and $\omega$ a tangent circle to the line $AI$ at $I$ and to the side $BC$. Prove that the circles $\Gamma$ and $\omega$ are tangent.
Math Olympiad Vault · MathNet 2015-part-05 — 191 problems (EN–VI)