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平面上点P与不共线三点A、B、C满足关系式:++=,则下列结论正确的是( ) A...
平面上点P与不共线三点A、B、C满足关系式:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/0.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/1.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/2.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/3.png)
,则下列结论正确的是( )
A.P在CA上,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/4.png)
=2
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/5.png)
B.P在AB上,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/6.png)
=2
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/7.png)
C.P在BC上,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/8.png)
=2
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183441842385543/SYS201310241834418423855012_ST/9.png)
D.P点为△ABC的重心
考点分析:
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