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Question
Write the following set in the set-builder form:
{2, 4, 8, 16, 32}
Solution
{2, 4, 8, 16, 32}
It can be seen that 2 = 21, 4 = 22, 8 = 23, 16 = 24, and 32 = 25.
∴ {2, 4, 8, 16, 32} = {x : x = 2n, n ∈ N and 1 ≤ n ≤ 5}
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