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已知点P在曲线y=上,α为曲线在点P处的切线的倾斜角,则α的取值范围是( ) A...
已知点P在曲线y=
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上,α为曲线在点P处的切线的倾斜角,则α的取值范围是( )
A.[0,
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)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224741027941260/SYS201311012247410279412003_ST/2.png)
C.
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D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224741027941260/SYS201311012247410279412003_ST/4.png)
考点分析:
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集A={a,b},B={-1,0,1},从A到B的映射f
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设a,b为实数,若复数
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B.a=3,b=1
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在直角坐标平面中,已知点P
1(1,2),P
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224741027776714/SYS201311012247410277767021_ST/0.png)
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如图,直线y=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224741027776714/SYS201311012247410277767020_ST/0.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224741027776714/SYS201311012247410277767020_ST/1.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224741027776714/SYS201311012247410277767020_ST/images2.png)
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