Mathematics for IGCSE & O level - Sets (Section 2 - No. 12)
If A = {x | x is an even number} and B = {x | x is a multiple of 4}, then what is the relationship between A and B?
A ⊆ B
B ⊆ A
A = B
A and B are disjoint
Explanation
Since all multiples of 4 are also even numbers, B is a subset of A.
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