College Algebra / Alg 386 · Atom · ~20 seconds
Radical Functions and Their Domains
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State
A radical function carries the variable under a radical; with an even index, the domain is wherever the radicand is nonnegative.
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g(x) = √(x − 2) lives on [2, ∞): the radicand crosses into legality at 2, bracket included since √0 = 0.
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