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已知,,向量与垂直,则实数λ的值为( ) A.- B. C.- D.
已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/1.png)
,向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/2.png)
与
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/3.png)
垂直,则实数λ的值为( )
A.-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/4.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/5.png)
C.-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/6.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124332914840129/SYS201310251243329148401003_ST/7.png)
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