已知在等边三角形ABC中,点P为线段AB上一点,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763014_ST/0.png)
.
(1)若等边三角形边长为6,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763014_ST/1.png)
,求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763014_ST/2.png)
;
(2)若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763014_ST/3.png)
,求实数λ的取值范围.
考点分析:
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763010_ST/0.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763010_ST/1.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182848321676366/SYS201310241828483216763010_ST/2.png)
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