Question

6),determine a união dos seguintes intervalos
A),[2,7]u[1,3]
B),]5,7[u[1,8]
C),]-00,1[u[0,5]
D),[1,7]u]-3,6[

Answer 1

a)[2,7]
b)]5,8]
c)]-oo,5]
d)]-3,7]