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Cate elemente are multimea A={x∈ Z l [tex]- \frac{5}{3} \ \textless \ \frac{x}{7} \ \textless \ \frac{6}{11} [/tex] }?

Răspuns :

-5/3 < x/7 < 6/11
-35/3  <x < 42/11
-11,(6) <x < 3,(81)
  x={-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3}
multimea  are 15  elemente