已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/2.png)
.
(1)若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/3.png)
,记α-β=θ,求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/4.png)
的值;
(2)若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/5.png)
,β≠kπ(k∈Z),且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/6.png)
∥
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/7.png)
,求证:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183708304776648/SYS201310241837083047766014_ST/8.png)
.
考点分析:
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