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71914 (4) Symbol: The fourth power root of a positive number is a positive number, and the fourth power root of a negative number is a complex number.
0 (2) Negative numbers: Negative numbers also have four power roots, but they are complex numbers. For example, the fourth power root of -16 is 2i and -2i because (2i)⁴ = -16;
10452039 The fourth power root of 451