Keyword | CPC | PCC | Volume | Score | Length of keyword |
---|---|---|---|---|---|

principal cube root definition | 1.64 | 0.2 | 9825 | 67 | 30 |

principal | 1.42 | 0.4 | 3844 | 5 | 9 |

cube | 1.74 | 0.5 | 8740 | 14 | 4 |

root | 0.46 | 0.5 | 4539 | 93 | 4 |

definition | 0.24 | 0.6 | 3716 | 30 | 10 |

Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|

principal cube root definition | 1.1 | 0.2 | 4281 | 72 |

In some contexts, particularly when the number whose cube root is to be taken is a real number, one of the cube roots (in this particular case the real one) is referred to as the principal cube root, denoted with the radical sign 3√.

The unique nonnegative square root of a nonnegative real number. For example, the principal square root of 9 is 3, although both and 3 are square roots of 9.

A cube root is a number, which when cubed gives the radicand, whereas the square root is a number which when squared gives the radicand. Also, the cube root of a negative number can be negative whereas the square root of a negative number cannot be negative.

The cube root operation is not distributive with addition or subtraction . In some contexts, particularly when the number whose cube root is to be taken is a real number, one of the cube roots (in this particular case the real one) is referred to as the principal cube root, denoted with the radical sign 3√.