Question

a)={a,b,c,d,e}. b)={d,e,f,g}. c)={c,e,f,h} pergunta a)AuBuC. b)AnBnC c)(AuB)nC. d)(BuC)-A. e)(BnC)-A?

Answer 1

A) AuBuC=a,n,c,d,e,e,f,g
B) AnBnC=e
C)(AuB)nC=(a,b,c,e,f,g)nC=c,e,f
D)(BuC)-A=(c,d,e,f,g,h)-A=f,g,h
E)(BnC)-A=(e,f)-A=f