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MathNet 2025 — 50 problems with figures (EN–VI) Question 40

Math Olympiad Vault · MathNet 2025 — 50 problems with figures (EN–VI)

Question 40

There exists a unique circle that is both tangent to the parabola $y = x^{2}$ at two points and tangent to the curve $x = \sqrt{\frac{y^{3}}{1 - y}}$. Compute the radius of this circle.

Proposed by: Karthik Venkata Vedula