Question

fie multimea a={2;-4;15/5;1/3;-11/11;+7;2/4;21/3} scrieti 3 submultimi ale multimii A ale caror elemente sunt numere intregi
va rooggg!!!​

Answer 1

Mulțimea numerelor întregi se notează cu $\large \bf \mathbb{Z}$ si cuprinde numerele atat pozitive cat si cele negative:

$\large \bf \mathbb{Z} = \big\{.... -3, -2, -1, 0, +1, +2, ......\big\}$

$\bf A = \bigg\{2, -4, \dfrac{15}{5}\bigg\}$

$\bf B = \bigg \{\dfrac{21}{3}, -\dfrac{11}{11}, 2 \bigg\}$

$\bf C = \bigg \{\dfrac{21}{3}, 2,7\bigg\}$

• Calculele

$\bf\dfrac{15}{5} =\dfrac{3}{1}=3\\\\\\\bf-\dfrac{11}{11}=-1\\\\\\\bf\dfrac{21}{3}=\bf\dfrac{7}{1}=7$

Bafta multa !