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stabiliti care dintre urmatoarele propozitii sunt adevarata
A. √0,5 ∈ N
B.√0,5∈ Z
C. √0,5∈Q
D. √0.5 ∈ I


Răspuns :

    
[tex]a)~~~\sqrt{0,5} \in N ~~...~~ FALS \\ b)~~~\sqrt{0,5} \in Z ~~...~~ FALS \\ c)~~~\sqrt{0,5} \in Q ~~...~~ FALS \\ c)~~~\sqrt{0,5} \in I ~~...~~ Adevarat \\[/tex]