Question

Considere os conjuntos.
X= {1,2,3,4}
Y={2,3,5 } e
Z={1,2,3,4,5,6,7,8} , determine

a) (xUy) -z
b) xიyიz
c) z-(xUz)

Answer 1

a) {1,2,3,4,5} - {1,2,3,4,5,6,7,8}= { }

b) {2,3}

c) {1,2,3,4,5,6,7,8} - {1,2,3,4,5,6,7,8}= { }