This Method Fails — Can You Solve This Insane Inequality? скачать в хорошем качестве

This Method Fails — Can You Solve This Insane Inequality?

This is Problem #9 from our elite problem-solving series. We solve a near-IMO level functional inequality: f(x) + f(y) ≥ f(x + y) + xy This problem requires: • Structural thinking • Functional equation insight • Inequality intuition • Olympiad-level reasoning (not tricks) ⚠️ This is NOT a routine JEE problem. It targets serious aspirants preparing for: • Math Olympiad • INMO / IMO training • JEE Advanced top ranks 🧠 Key ideas used in the solution: – Symmetric substitutions – Reduction to subadditive functions – Quadratic forcing techniques – Equality case analysis 👉 Pause the video and try solving it yourself before watching the solution. 📌 Equality cases and full justification included. 📌 No steps skipped. 📌 Pure mathematics. 🔔 Subscribe for daily elite problems: • Inequalities • Functional equations • Olympiad bridge problems • Near-IMO level challenges 📍 Next video: Problem #10 — Geometry + Inequality (Final Boss)