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直线l与函数y=sinx(x∈[0,π])的图象相切于点A,且l∥OP,其中O为...
直线l与函数y=sinx(x∈[0,π])的图象相切于点A,且l∥OP,其中O为坐标原点,P为图象的极大值点,则点A的纵坐标是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102704740258887/SYS201311031027047402588008_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102704740258887/SYS201311031027047402588008_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102704740258887/SYS201311031027047402588008_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102704740258887/SYS201311031027047402588008_ST/3.png)
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,则直线ax+by+1=0和直线x+y+2=0的夹角的正切值为( )
A.3
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C.
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D.
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定义在R上的函数y=f(x)满足f(5+x)=f(-x),(x-
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)f'(x)>0,则“f(x)>f(x+1)”是“x<2”的( )条件.
A.充分不必要
B.必要不充分
C.充分必要
D.既不充分也不必要
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正项数列{a
n}满足
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=( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102704740258887/SYS201311031027047402588005_ST/1.png)
B.
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C.
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D.
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已知a>1,实数x,y满足
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,则y关于x的函数的图象大致是( )
A.
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B.
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C.
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D.
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已知点P(x,y)在经过A(3,0)、B(1,1)两点的直线上,那么2
x+4
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A.2
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B.4
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C.16
D.不存在
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