高 三 第 一 阶 段 测 试 题
1.下列四类
函数
excel方差函数excelsd函数已知函数 2 f x m x mx m 2 1 4 2拉格朗日函数pdf函数公式下载
中,个有性质“对任意的x>0,y>0,函数f(x)满足
f(x+y)=f(x)f(y)”的是( )
A.幂函数
B.对数函数
C.指数函数
D.余弦函数
2.若曲线在点处的切线方程是,则( )
A. B. C. D.
3.函数y=1+ln(x-1)(x>1)的反函数是()
A.y=-1(x>0) B.y=+1(x>0) C.y=-1(x R) D.y=+1 (x R)
4.设( )
A.a
f(-a),则实数a的取值范围是
15.
在区间
上有反函数,则a的范围为是 .
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