Question

A={3,6,9,12,15,18} B={1,2,4,5,6,10,11,15,30} C={6,8,12,14,16,18,20}

a) (AUB) C =

b) (BПC) U A=

c) (AПB) U C=​

Answer 1

Explicação:

vamos lá:

A={3,6,9,12,15,18} B={1,2,4,5,6,10,11,15,30} C={6,8,12,14,16,18,20}

a) (AUB)C=

b) (BпC) U A=

(BПC)={ 6}

(BПC)UA= {3,6,9,12,15,18}

c) (AПB) U C=

(AПB)={6, 15}

(AПB)U C= { 6,8,12,14,15,16,18,20}