双曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721013_ST/0.png)
的渐近线方程为
.
考点分析:
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直线2x-3y+1=0关于直线y=x对称的直线方程为
.
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椭圆
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721011_ST/0.png)
的两个焦点分别为F
1、F
2,P是椭圆上位于第一象限的一点,若△PF
1F
2的内切圆半径为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721011_ST/1.png)
,则点P的纵坐标为( )
A.2
B.3
C.4
D.
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△ABC中,AB=AC=5,BC=6,PA=8且PA⊥平面ABC,则P到BC的距离为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721010_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721010_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721010_ST/2.png)
D.
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如图,过抛物线y
2=2px(p>0)的焦点F且倾斜角为60°的直线l交抛物线于A、B两点,若|AF|=3,则此抛物线方程为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721009_ST/images0.png)
A.y
2=3
B.y
2=6
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721009_ST/0.png)
D.y
2=2
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如图,F为双曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721008_ST/0.png)
的左焦点,A是它的右顶点,B
1B
2为虚轴,若∠FB
1A=90°,则双曲线的离心率是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721008_ST/images1.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721008_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721008_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225134671072161/SYS201311012251346710721008_ST/3.png)
D.
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