CN-TST 2017 Problem 19

Prove that : $\sum_{k=0}^{58}C_{2017+k}^{58-k}C_{2075-k}^{k}=\sum_{p=0}^{29}C_{4091-2p}^{58-2p}$

Dataset text AI-MO AoPS. Quoted with source.

Solutions

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