Question

repedeeee dau coroana​

Answer 1

Explicație pas cu pas:

$|x| < 4$

$- 4 < x < 4$

A = {-3, -2, -1, 0, 1, 2, 3}

$- x + 2 > - 5 \\ - x > - 5 - 2 \\ - x > - 7 \iff x < 7$

B = {1, 2, 3, 4, 5, 6}

$A \cap B = \{1, 2, 3\}$

A \ B = {-3, -2, -1, 0}