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Omni-MATH / How many functions f:1,2,…,10→1,2,…,10 satisfy the property that f(i)+f(j)=11 for all values of i and j such that i+j=11. · Discussion

Discussing How many functions f:{1,2,…,10}→{1,2,…,10} satisfy the property that f(i)+f(j)=11 for all values of i and j such that i+j=11. · Omni-MATH

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