Question 4:
Answer
Therefore, the domain of f is the set of all real numbers greater than or equal to 1 i.e., the domain of f = [1, ∞).
As x ≥ 1 ⇒ (x – 1) ≥ 0
Therefore, the range of f is the set of all real numbers greater than or equal to 0 i.e., the range of f = [0, ∞).
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