help. Dau coroana, inima si 20 punctee❤️❤️
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2n+1≠0
supraunitară ==> 9>2n+1. (rezolvam inecuația)
9-1>2n
8>2n
8:2>n
4>n
si cum n Natural ==>n={1,2,3}
…ᘛ⁐̤ᕐᐷฅ^•ﻌ•^ฅ