已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483003_ST/0.png)
是奇函数,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483003_ST/1.png)
=( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483003_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483003_ST/3.png)
C.2
D.-2
考点分析:
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比较
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/0.png)
、2
3.1、
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/1.png)
的大小关系是( )
A.2
3.1<
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/2.png)
<
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/3.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/4.png)
<2
3.1<
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/5.png)
C.
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<
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/7.png)
<2
3.1D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/8.png)
<
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483002_ST/9.png)
<2
3.1
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函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483001_ST/0.png)
的定义域是:( )
A.[1,+∞)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483001_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901248343/SYS201311012248179012483001_ST/2.png)
D.
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若集合M={1,t
2},N={-2,t+2},且M∩N≠φ,则实数t的值等于( )
A.-1
B.2
C.1
D.不确定
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如图,已知抛物线C:x
2=2py(p>0)与圆O:x
2+y
2=8相交于A、B两点,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901085473/SYS201311012248179010854021_ST/0.png)
(O为坐标原点),直线l与圆O相切,切点在劣弧AB(含A、B两点)上,且与抛物线C相交于M、N两点,d是M、N两点到抛物线C的焦点的距离之和.
(Ⅰ)求p的值;
(Ⅱ)求d的最大值,并求d取得最大值时直线l的方程.
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已知点F是双曲线C:x
2-y
2=2的左焦点,直线l与双曲线C交于A、B两点,
(1)若直线l过点P(1,2),且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901085473/SYS201311012248179010854020_ST/0.png)
,求直线l的方程.
(2)若直线l过点F且与双曲线的左右两支分别交于A、B两点,设
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224817901085473/SYS201311012248179010854020_ST/1.png)
,当λ∈[6,+∞)时,求直线l的斜率k的取值范围.
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