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MathNet 2019-part-01 — 184 problems (EN–VI) Question 127

Math Olympiad Vault · MathNet 2019-part-01 — 184 problems (EN–VI)

Question 127

The point $M$ is the midpoint of the side $BC$ of the triangle $ABC$. A circle passes through $B$, is tangent to the line $AM$ at $M$ and intersects the segment $AB$ for the second time at the point $P$.
Prove that the circle passing through $A$, $P$ and the midpoint of the segment $AM$ is tangent to the line $AC$.