Mathematics for IGCSE & O level - Sets (Section 1 - No. 46)
What is the complement of the set of all prime numbers within the universal set of integers from 1 to 10?
{1, 4, 6, 8, 9, 10}
{2, 3, 5, 7}
{1, 2, 3, 5, 7}
{4, 6, 8, 9, 10}
解释
The complement consists of non-prime numbers in the universal set.