设$f\left(x\right)=arc\tan x$，$g\left(x\right)=\sin \frac{2x+\pi }{3}$，则$g\left[f\left(-1\right)\right]=$ .
[试题]设f(x)=3x,g(x)=x2，则函数g[f(x)]-f[g(x)]=_______________.
设 f(x)= 2x ln (1-x), g(x)= sin^2 x，则当 x to 0 时 f(x) 是 g(x) 的()。A. 等价无穷小.B. 同阶但非等
设f(x)=e^x,f[g(x)]=1-x^2则g(x)=设$$f(x)=e^{x},f[g(x)]=1-x^2$$则$$g(x)$$$$=$$
[问答题]设f(x)=ex，f[g(x)]=1-x2，则g(x)=--------------------.
[问答题]设f(x)=ex，f[g(x)]=1-x2，则g(x)=----------------.
[问答题]设f(x)=ex，f[g(x)]=1-x2，则g(x)=------------.
(B) (int )_({x)_(1)}^(x_{3)}pi [ (f)^2(x)-(g)^2(x)] dx.-|||-(C)(int )_(x)^(x_{3)
设函数f(x)=(1)/(x)，g(x)=1-x，则f[g(x)]=A. 1-$\frac{1}{x}$B. 1+$\frac{1}{x}$C. $\frac{
[主观题]设f (x)=x2,g(x)=ex,则f [g(x)]=_________.
[试题]设函数f(x)=lnx，g(x)=e2x+1，则f[g(x)]=______。