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A financial data analyst uses the function f(x)=−x3f(x) = -\sqrt[3]{x} to model the normalized distribution of trading errors. When determining the valid inputs for this model, the analyst notes that because the index of the radical (3{}3) is an odd number, there are no restrictions on the radicand. Consequently, the domain of this function consists of all _____ numbers.

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Updated 2026-09-19

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