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4 la puterea 81 ><= 2 la puterea 40

Răspuns :

4⁸¹ ≈2⁴⁰
(2²)⁸¹≈ 2⁴⁰
2¹⁶²>2⁴⁰
[tex]4^{81}~\boxed{}~2^{40} \\ 4>2 \\ 81>40 => \\ =>4^{81}\boxed{>}2^{40}[/tex]