Question

Sejam A=(1,2,4), B=(1,3,4,5) e C=(5,6,7,8) responda a) AUB
b) AUC
c) BUC
d) A∩B
e)A∩C
f) B∩C
g)(AUB)∩C
h) (AUC)UB

Answer 1

a={1,2,3,4,5}
b={1,2,4,5,6,7,8}
c={1,3,4,5,6,7,8}
d={1,4}
e={não tem}
f={5}
g={1,2,3,4,5}; c={5,6,7,8}= {5}
h={1,2,3,4,5,6,7,8}; b={1,3,4,5}={1,2,3,4,5,6,7,8}