easy · GMAT Quantitative Reasoning
Let f(x) = √(x - 1) and g(x) = x^2 + 1.
What is the domain of the composite function f(g(x))?
- All real numbers
- x ≤ -1 or x ≥ 1
- x ≥ 1
- x ≥ 0
- x ≠ 1
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