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determina nr x astfel 6 supra x+2 ∈ N


Răspuns :

x poate fi0, 1 si 4
6 supra 1+2 = 6÷3=2 ,€N
6 supra 4+2= 6÷6=1 €N 6 supra 0+2=6÷2=3
[tex] \frac{6}{x+2} [/tex]
[tex]x[/tex]∈[tex]{0,1,4} [/tex]
[tex]x=0 =\ \textgreater \ \frac{6}{0+2} =3 [/tex]∈[tex]N[/tex]
[tex]x=1=\ \textgreater \ \frac{6}{1+2} = \frac{6}{3} = 2 [/tex]∈[tex]N [/tex]
[tex]x=4=\ \textgreater \ \frac{6}{4+2} = \frac{6}{6} =1[/tex]∈[tex]N[/tex]