Sets 2
2 marks · NormalWrite the set of natural numbers less than 8 in set-builder notation.
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{x : x < 8, x ∈ ℕ}
Also accept: {x|x < 8, x ∈ ℕ}; {x : x ∈ ℕ, x < 8}
Common mistakes: Missing x ∈ ℕ
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Marking points
B1 · 2 marks · For correct and complete set-builder notation, including the condition x ∈ ℕ.
Worked solution
The set is written as {x : x < 8, x ∈ ℕ}.