若复数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe7ea6c4574d376c2e80062de0a62f0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af63aedb5908a62d0b38e27a99373086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe7ea6c4574d376c2e80062de0a62f0.png)
更新时间:2020-02-27 13:55:11
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【推荐1】在复平面上,复数
所对应的点到原点的距离是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9f2cba40b67c676bfba54842d83029.png)
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【推荐2】已知
是
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(其中
是虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ca24d6b2365925cf5ad0a11541174d.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ab8874aef31b6c1488baa3be89191a.png)
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【推荐1】对任意复数z=x+yi(x,y∈R),i为虚数单位,则下列结论正确的是________ .(填序号)
①
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③
; ④|z|≤|x|+|y|.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e5eb605f869138112682fbef9a8090.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa934f9859b677a5fdd32090e05c368.png)
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【推荐2】已知
为虚数单位,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8aaf56d77ab8e25e24aaab8c2e5a57.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8918004a2172e5a72db21fb51794c1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8aaf56d77ab8e25e24aaab8c2e5a57.png)
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