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在[0,2π]上满足sinx≥的x的取值范围是( ) A. B. C. D.
在[0,2π]上满足sinx≥
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的x的取值范围是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961012_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961012_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961012_ST/3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961012_ST/4.png)
考点分析:
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(必修3做)如图,大正方形靶盘的边长为
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,四个全等的直角三角形围成一个小正方形,即阴影部分.较短的直角边长为2,现向大正方形靶盘投掷飞镖,则飞镖落在阴影区域的概率为( )
A.
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B.
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C.
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D.
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函数y=Asin(ωx+ϕ)在一个周期内的图象如图,此函数的解析式为( )
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A.
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B.
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C.
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D.
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如图,已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/2.png)
,用
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/3.png)
、
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/4.png)
表示
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/5.png)
为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/images6.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/6.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/7.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/8.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/9.png)
D.
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=
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=( )
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