How to find the domain of square root functions?

Examples on How to Find the Domain of Square Root Functions with Solutions Example 1 Find the domain of function f defined by f(x) = √(x - 1) Solution to Example 1. For f(x) to have real values, the radicand (expression under the radical) of the square root function must be positive or equal to 0. Hence x - 1 ≥ 0
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