A.0
B.-1
C.-2
D.-3
[问答题]f(x-2)=x2,则f(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]已知f’(x)=sec2x+sin2x,且f(0)=3/2,则f(x)等于().A . B . C . D .
[试题]设f(x)=3x,g(x)=x2,则函数g[f(x)]-f[g(x)]=_______________.
[问答题]f(x)=x2,则f′(x)在x=2处的导数值为__________。
[主观题]设f (x)=x2,g(x)=ex,则f [g(x)]=_________.
[单选题]满足方程f(x)+2f(x)dx=x2的解f(x)是:()A . -(1/2)e-2x+x+1/2B . (1/2)e-2x+x-1/2C . ce-2x+x-1/2D . ce-2x+x+1/2
[问答题]已知f′(2+cosx)=sin2x+tan2x,则f(x)=------------.