Question

Let U = {u, n, i, t, e}
A = {n, i, t}
B = {n, e}
C = {u, n, i, t, e}
D = {u, e}

Find each of the following:

Answer 1

You can type certain characters related to sets as follows:
"& c u p ;" ∪
"& c a p ;" ∩
"& s u b ;" ⊂
"& i s i n ;" ∈
"& n o t i n ;" ∉
"& e m p t y ;" ∅
"& a n d ;" ∧
"& o r ;" ∨
Do not include the double quotes nor the intervening spaces.