如果复数(m2+i)(1+mi)是实数,则实数m= .
考点分析:
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(1)若
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225209481656746/SYS201311012252094816567019_ST/2.png)
,求
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的值.
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已知向量
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(1)若点A、B、C能构成三角形,求实数m应满足的条件;
(2)若△ABC为直角三角形,且∠A为直角,求实数m的值.
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已知向量
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,
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.且x
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求(1)
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225209481656746/SYS201311012252094816567017_ST/3.png)
;
(2)若f(x)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225209481656746/SYS201311012252094816567017_ST/4.png)
-2λ|
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|的最小值是-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225209481656746/SYS201311012252094816567017_ST/6.png)
,求λ的值.
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