Question

A= {x E R -2 < x _> 6 }, B [ -4, 5 [ e C= ]0, 8 [
Considere os três intervalos reais:

Determine o resultado das seguintes operações:

a) A ∩B

b) A – B

c) B – C

d) C – B

e) B∩C

Answer 1

A={-1,0,1,2,3,4,5,6}
B={-4,-3,-2,-1,0,1,2,3,4}
C={1,2,3,4,5,6,7}
a) Resposta={-1,0,1,2,3,4}
b) Resposta={-4,-3,-2}
c)Resposta={-4,-3,-2,-1,0}
d) Resposta={5,6,7}
e) Resposta={1,2,3,4}