Let U = {0, 1, 2, 3, 4, 5, 6 $$\left| A ^ { \prime } \cup B ^ { \prime } \right|$$

question 20

Multiple Choice

Let U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, r, s, t}
A = {0, 2, 4, 8, r, t}
B = {1, 3, 7, 8, 9, s, t}
Find the following:
- $$\left| A ^ { \prime } \cup B ^ { \prime } \right|$$

• A) 11
• B) 12
• C) 10
• D) 13
• E) None of these

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