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7的3次方是多少
更新时间: 2020-10-03 00:00:00  

7的三次方即为三个7相乘,结果为343、

几个相同的数连乘即为这个数的几次方。

规定:

1、任何数的零次方都等于一;

2、0的任意正数次方都为零;

3、0的0次方无意义;

4、一个数的零次方再除以这个数就为这个数的负数次方。

关键词: 次方 多少

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