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1加i的绝对值为啥等于根号下2
更新时间： 2021-05-22 02:14:21  

1、复数的模|1＋i|＝ √1^2＋1^2＝√2。

2、主要考查非负数的性质以及立方根，根据被开方数大于等于0，分母不等于0列式求出x的取值范围，再根据非负数的性质列式求出x、y的值，然后代入代数式进行计算，再根据立方根的定义解答。

关键词： 绝对值 为啥 等于 根号

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