[单选题]已知f(x)=x2+ax+3,若f(2+x)=f(2-x),则f(2)=()。A.0B.-1C.-2D.-3
[主观题]设f (x)=x2,g(x)=ex,则f [g(x)]=_________.
[问答题]f(x)=x2,则f′(x)在x=2处的导数值为__________。
[试题]设f(x)=3x,g(x)=x2,则函数g[f(x)]-f[g(x)]=_______________.
[单选题]若函数f(x)对任意实数x1、x2均满足关系式f(x1+x2)=f(x1)f(x2).且f′(0)=2,则必有( )A.f(0)=0B.f(0)=2
[单选题]若函数f(x)对任意实数x1、x2均满足关系式f(x1+x2)=f(x1)f(x2).且f′(0)=2,则必有( )A.f(0)=0B.f(0)=2
[单选题]若函数f(x)对任意实数x1、x2均满足关系式f(x1+x2)=f(x1)f(x2).且f′(0)=2,则必有( )A.f(0)=0B.f(0)=2
[单选题]设f(x)=x(x-1)(x-2),则方程f′(x)=0的实根个数是()。A.3B.2C.1D.0
[单选题]设f(x)=x(x-1)(x-2),则方程f′(x)=0的实根个数是()。A.3B.2C.1D.0
[单选题]设f(x)=x(x-1)(x-2),则方程f′(x)=0的实根个数是()。A.3B.2C.1D.0