Question

Folosind inegalitatile sa se expliciteze :
a) x apartine [1/2, 5/3]
b) a apartine (-3/4, 7/2)
c) y apartine (-4,2]
d) z apartine [o,2;5)
e) x nu aparine [1,5]
f) x nu apartine (-3,3)
g) x nu apartine (-infinit, 4]

Answer 1

$a) \frac{1}{2} \leq x \leq \frac{5}{3}$
$b)- \frac{3}{4} \ \textless \ a\ \textless \ \frac{7}{2}$
$c)-4\ \textless \ y \leq 2$
$d)0 \leq z\ \textless \ 5$
$e)x\ \textless \ 1,x\ \textgreater \ 5$
$f)x \leq -3,x \geq 3$
$g)x\ \textgreater \ 4$