Question

dados:
E= {3, 4, 6, 8}
F= {1, 2, 3, 4, 6, 8, 9}
G= {4,5,6,7,8}

determine:

a) E U FUG


b) F -E

c) E U F

d) F (u de cabeça pra baixo) G

e) E ^ F (u de cabeça pra baixo) G

F) G_F

G) E-F

​

Answer 1

a)

$\mathbb{E}\cup(\mathbb{F} \cup\mathbb{G}) \\ =\left\{1,2,3,4,5,6,7,8,9\right\}$

b)

$\mathbb{F}-\mathbb{E}=\left\{1,2,9\right\}$

c)

$\mathbb{E} \cup\mathbb{F}=\left\{1,2,3,4,6,8,9\right\} \\ = \mathbb{F}$

d)

$\mathbb{F}\cap\mathbb{G}=\left\{4,6,8\right\}$

e)

$\mathbb{E}\cap\mathbb{F}\cap\mathbb{G} =\left\{4,6,8\right\}$

f)

$\mathbb{G}-\mathbb{F} </p><p>=\left\{5,7\right\} </p><p>$

g)

$\mathbb{E} -\mathbb{F} =\varnothing$