Question

11- Represente os seguintes subconjuntos:
a) A = {x € IR / X > -3}
b) B = {x € IR / 2 < x < 5}​

Answer 1

a)

$A=\left\{x\in\mathbb{R}/x>3\right\}\\A=\left\{-4,-5,-6... \right\}$

b)

$B=\left\{x\in\mathbb{R}/2 < x < 5\right\}$

$B=\left\{3,4\right\}$