Question

Dane sa zbiory A={1,3,5,7,9}, B={1,2,3,4,5,}, c+{4,5,8,9}.
Wyznacz nastepujace zbiory a) (A i obok tego znaczek do dolu B) U C
b) (A U B) \ C

Answer 1

A)
(AnB)uC={1,3,5}u{4,5,8,9}={1,3,4,5,8,9}
b)
(AuB)\C={1,2,3,4,5,7,9}\{4,5,8,9}={1,2,3,7}