nth root

The four 4th roots of −1, none of which is real

The three 3rd roots of −1, one of which is a negative real

In mathematics, the nth root of a number x, where n is a positive integer, is a number r which, when raised to the power n yields x

where n is the degree of the root. A root of degree 2 is called a square root and a root of degree 3, a cube root. Roots of higher degree are referred by using ordinal numbers, as in fourth root, twentieth root, etc.

单词	Fourth root
释义	Fourth root 原声例句朗文OCLM-01单词 2 is the fourth root of 16. 【root】2是16的第四个根。英语百科 nth root In mathematics, the nth root of a number x, where n is a positive integer, is a number r which, when raised to the power n yields x where n is the degree of the root. A root of degree 2 is called a square root and a root of degree 3, a cube root. Roots of higher degree are referred by using ordinal numbers, as in fourth root, twentieth root, etc.
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Fourth root

nth root