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va rrrrrrrrrrr exxxxxxxxxxx 3 dau coroana

Va Rrrrrrrrrrr Exxxxxxxxxxx 3 Dau Coroana class=

Răspuns :

n=1×2×....×9+2
n=1×2×3×4×5×6×7×8×9+2
n=.....0+2
n=U(n)=2=(N) nu este pătrat perfect