alleryU = {1, 2, ..., 10} and A = {1, 3, 5, 7, 9}. The complement of A is:
A{1, 3, 5, 7, 9}
B{1, 2, 3, 4, 5}
C{6, 7, 8, 9, 10}
D{2, 4, 6, 8, 10}
Answer & Solution
Correct answer: D. {2, 4, 6, 8, 10}
1. The complement holds everything in U that is not in A.
2. A has the odd numbers.
3. So the complement is the even numbers up to 10.
_Source: syllabus Mathematics, Chapter 1, Sets._
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