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如图所示,点P是函数y=2sin(ωx+φ)(x∈R,ω>0)图象的最高点,M、...
如图所示,点P是函数y=2sin(ωx+φ)(x∈R,ω>0)图象的最高点,M、N是图象与x轴的交点,若
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=0,则ω=
.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024180248775617420/SYS201310241802487756174013_ST/images1.png)
考点分析:
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已知点F是双曲线
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(a>0,b>0)的左焦点,点E是该双曲线的右顶点,过F且垂直于x轴的直线与双曲线交于A、B两点,若△ABE是锐角三角形,则该双曲线的离心率e的取值范围是
.
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给出定义:若
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(其中m为整数),则m叫做离实数x最近的整数,记作{x}=m.在此基础上给出下列关于函数f(x)=|x-{x}|的四个命题:
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②函数y=f(x)的图象关于直线
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(k∈Z)对称;
③函数y=f(x)是周期函数,最小正周期为1;
④函数y=f(x)在
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上是增函数.
其中正确的命题的序号是( )
A.①
B.②③
C.①②③
D.①④
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如图,在直三棱柱A
1B
1C
1-ABC中,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024180248775617420/SYS201310241802487756174010_ST/0.png)
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B.1
C.
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D.
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