Question

Vă rog! ! ! ! ! ! ! ! ! !

Answer 1

$M=\left \{ - 8, \frac{3}{4} , 5, - 4 , \frac{9}{2} , \frac{10}{3} , - \frac{3}{4} , 11, \frac{8}{3} , - \frac{4}{11} , \frac{4}{11} , - 1, \frac{21}{3} , - \frac{21}{3} \right \}$

$A=\left\{x\:\in\:M\:|\:x\:\in\:\mathbb{N}\right\}$

$= > A=\left\{5,11, \frac{21}{3} \right \}$

$B=\left\{x\:\in\:M\:|\:x\:\in\:\mathbb{Z}\right\}$

$= > B=\left\{ - 8,5 ,- 4,11, - 1 ,\frac{21}{3}, - \frac{21}{3} \right\}$

$C=\left\{x\:\in\:M\:|\:x\:\in\:\mathbb{Z_{+}}\right\}$

$= > C=\left\{5,11, \frac{21}{3} \right\}$

$D=\left\{x\:\in\:M\:|\:x\:\in\:\mathbb{Z_{-}}\right\}$

$= > D=\left\{ - 8, - 4, - 1, - \frac{21}{3} \right\}$

$E=\left\{x\:\in\:M\:|\:x\:\in\:\mathbb{Q_{-}}\right\}$

$= > E=\left\{ - 8,- 4, - \frac{3}{4} , - \frac{4}{11} , - 1, - \frac{21}{3} \right\}$

$F=\left\{x\:\in\:M\:|\:x\:\in\:\mathbb{Q_{+}}\right\}$

$= > F=\left\{ \frac{3}{4} ,5, \frac{9}{2} , \frac{10}{3} ,11,\frac{8}{3} ,\frac{4}{11} ,\frac{21}{3} \right\}$