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Omni-MATH / Let L be the number formed by 2022 digits equal to 1, that is, L=1111…111. Compute the sum of the digits of the number 9L²+2L. · Discussion

Discussing Let L be the number formed by 2022 digits equal to 1, that is, L=1111…111. Compute the sum of the digits of the number 9L²+2L. · Omni-MATH

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