已知复数z
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321664264/SYS201310241828483216642016_ST/0.png)
+ai和z=z
-|z
|+1-(1+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321664264/SYS201310241828483216642016_ST/1.png)
)i,i为虚数单位,a为实数.证明:复数z不可能为纯虚数.
考点分析:
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