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任取x1,x2∈[a,b],且x1≠x2,若,称f(x)是[a,b]上的凸函数,...
任取x
1,x
2∈[a,b],且x
1≠x
2,若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352007_ST/0.png)
,称f(x)是[a,b]上的凸函数,则下列图象中,是凸函数图象的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352007_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352007_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352007_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352007_ST/images4.png)
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已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352005_ST/0.png)
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)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352005_ST/2.png)
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已知函数f(x)=2sinωx(ω>0)在区间
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上的最小值是-2,则ω的最小值等于( )
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352004_ST/1.png)
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B.
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352003_ST/4.png)
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复数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352002_ST/0.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352002_ST/1.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224346413335214/SYS201311012243464133352002_ST/2.png)
C.1
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