Question

A={números naturais menores que  7}
B={números naturais menores que  9}

AUB=

Answer 1

b= { 0,1,2,3,4,5,6,7,8,}

Answer 2

A=(0,1,2,3,4,5,6)
B=(0,1,2,3,4,5,6,7,8)
A UNIÃO COM B=(0,1,2,3,4,5,6,7,8)