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2022+2×(1+2+3+.....2021) dau coroana va roggggggg​

Răspuns :

Slavitescudoraask

S = 1+2+3+....+2021 = (1+2021)*2021/2 = (2022*2021)/2 = 1011*2021 = 2043231

2022 + 2*2043231 = 2022 + 4086462 = 4088484

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