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27的三分之二次方怎么计算
更新时间: 2020-09-20 00:00:00  

27的三分之二次方可以理解成是27的平方开三次方,可以分成两步解决:先把27开三次方,即3;再将3平方,所以最后结果是9。

这是利用了幂的乘法运算法则,幂次方可以互换位置,而不引起最终数值。所以先平方后开三次方可以看做是先开三次方在平方,便于计算。

关键词: 分之 次方 怎么 计算

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