Question:
The set {x ∈ R : 1 ≤ x < 2} can be written as ____________.
Solution:
The set {x ∈ R : 1 ≤ x < 2} is in interval with real values from 1 to 2, including 1.
i.e {x ∈ R : 1 ≤ x < 2} = [1, 2]
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