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若函数,又f(α)=f(β)=2,且|α-β|的最小值等于3π,则正数ω的值为(...
若函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682006_ST/0.png)
,又f(α)=f(β)=2,且|α-β|的最小值等于3π,则正数ω的值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682006_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682006_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682006_ST/3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682006_ST/4.png)
考点分析:
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如图,一个空间几何体的正视图(或称主视图)、侧视图(或称左视图)、俯视图均为全等的等腰直角三角形,如果直角三角形的斜边长为
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,那么这个几何体的体积为( )
A.1
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682005_ST/1.png)
C.
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D.
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程序框图表示的算法的运行结果是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682004_ST/images0.png)
A.5
B.6
C.7
D.8
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若
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是非零向量且满足(
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)⊥
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,
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,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682003_ST/4.png)
与
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的夹角是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682003_ST/6.png)
B.
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C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100150310268204/SYS201311031001503102682003_ST/8.png)
D.
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设复数z=cosθ+icosθ,θ∈[0,π],ω=-1+i,则|z-ω|的最大值是( )
A.
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+1
B.
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C.2
D.
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若函数f(x),g(x)的定义域都是R,则f(x)>g(x)(x∈R)成立的充要条件是( )
A.存在一个x∈R,使得f(x)>g(x)
B.有无数多个x∈R,使得f(x)>g(x)
C.对R中任意的x,都有f(x)>g(x)+1
D.R中不存在x,使得f(x)≤g(x)
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