考点分析:
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要得到函数y=sin2x的图象,需要将函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573006_ST/0.png)
的图象( )
A.向左平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573006_ST/1.png)
B.向右平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573006_ST/2.png)
C.向左平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573006_ST/3.png)
D.向右平移
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设f(x)=|2-x
2|,若0<a<b,且f(a)=f(b),则ab的取值范围是( )
A.(0,2)
B.(0,2]
C.(0,4]
D.(0,4)
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设函数f(x)=x
3+ax
2+(a+6)x+1,既有极大值又有极小值,则实数a的取值范围( )
A.a>6或a<-3
B.-3<a<6
C.a≥6或a≤-3
D.-3≤a≤6
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定义运算:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573003_ST/0.png)
,则函数f(x)=1⊗2
x的图象是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573003_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573003_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573003_ST/images3.png)
D.
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若函数f(x)=ax+b的零点为2,那么函数g(x)=bx
2-ax的零点是( )
A.0,2
B.0,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573002_ST/0.png)
C.0,-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231527888757370/SYS201311012315278887573002_ST/1.png)
D.2,
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