Question

find each indicated intersection or union
(1,2,4)U(4,6,8)

Answer 1

combine the two sets into one and remove duplicates to get:


(1,2,4)U(4,6,8)= {1, 2, 4, 6, 8}

Answer 2

thanks a lot.is that the case with all problems like that how about
(2,5,9,13)n(5,8,10)

Answer 3

Now write the set of things that are in common to BOTH sets. In this case, only 5 is in BOTH sets


So


{2, 5, 9, 13} n {5, 8, 10} = {5}

Answer 4

wow thanks so much. so would
(u,v,w) U (u,w) be
(u,v,w)?

Answer 5

yep, if one set is completely contained in the other, then the answer is just that larger set

Answer 6

formally, if set A is a proper subset of B, then A U B = B