2+1
Author: admin
Problem has been solved: 260 times
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Find the value of the expression $ 2 (... 2 (2 (2 (2 + 1) +1) +1 + ... + 1) + 1 $ (a total of 20 units and 20 twos).
Найдите значение выражения $2(...2(2(2+1)+1)+1+...+1)+1$ (всего 20 единиц и 20 двоек).
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