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1、三次方根也叫立方根。

2、一个数的立方等于a，那么这个数叫做a的立方根或三次方根。

3、正数的立方根是正数，负数的立方根是负数，0的立方根是0。

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5、在实数范围内，负数不能开平方，但可以开立方。

6、立方与开立方运算，互为逆运算。

7、在复数范围内，任何非0的数都有且仅有3个立方根。

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