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Determina valorile nr nat nenul x:
[tex]a) \: \: \frac{x}{19} < \frac{3}{19} \: \: b) \: \: \frac{11}{x} > \frac{11}{4} [/tex]


Răspuns :

x/19 < 3/19 

19x < 57

x < 3

x ∈ { 0, 1, 2}


11/x > 11/4

44 > 11x

4 > x

x < 4 

x ∈ {0, 1, 2, 3}