Question

Va rog ajutatima am nevoie de acest exercitiu ex 11​

Answer 1

Explicație pas cu pas:

$- 5 < \frac{3x + 8}{2} < 4 \\ - 10 < 3x + 8 < 8 \\ - 18 < 3x < 0 \\ - 6 < x < 0$

$\implies A = \Big( - 6 ; 0\Big)$

$\frac{1}{6} < \frac{x}{4} + \frac{1}{3} < \frac{1}{2} \\ 2 < 3x + 4 < 6 \\ - 2 < 3x < 2 \\ - \frac{2}{3} < x < \frac{2}{3}$

$\implies B = \Big(- \frac{2}{3} ; \frac{2}{3} \Big)$