International Mathematics Competition
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2020

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IMC2020: Day 1, Problem 4

Problem 4. A polynomial \(\displaystyle p\) with real coefficients satisfies the equation \(\displaystyle p(x+1)-p(x)=x^{100}\) for all \(\displaystyle x\in\mathbb{R}\). Prove that \(\displaystyle p(1-t)\geqslant p(t)\) for \(\displaystyle 0\leqslant t\leqslant 1/2\).

Daniil Klyuev, St. Petersburg State University

        

IMC
2020

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