设(d/dx)f(x)=g(x),h(x)=x2,则(d/dx)f[h(x)]等于:()
A . g(x2)
B . 2xg(x)
C . x2g(x2)
D . 2xg(x2)
[单选题]设4/(1-x2)·f(x)=d/dx[f(x)]2,且f(0)=0,则f(x)等于:()A . (1+x)/(1-x)+cB . (1-x)/(1+x)+cC . 1n|(1+x)/(1-x)|+cD . 1n|(1-x)/(1+x)|+c
[单选题]若∫f(x)dx=F(x)+C,则∫xf(1-x^2)dx=()。A.F(1-x^2)+CB.-(1/2)F(1-x^2)+CC.(1/2)F(1-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
[主观题]设f (x)=x2,g(x)=ex,则f [g(x)]=_________.
[试题]设f(x)=3x,g(x)=x2,则函数g[f(x)]-f[g(x)]=_______________.
[单选题]若f(x)dx=F(x)+c,则sinxf(cosx)dx等于:()A . F(sinx)+fB . -F(sinx)+cC . F(cosx)+cD . -F(cosx)+c
[单选题]设f(x)在积分区间上连续,则sinx?[f(x)+f(-x)]dx等于:()A . -1B . 0C . 1D . 2
[单选题]如果[f′(lnx)/x]dx=x2+c,则f(x)等于()A . 1/x2+cB . ex+cC . e2x+cD . xex+c
[单选题]如果f(x)=e-x,则[f′(lnx)/x]dx等于:()A . -(1/x)+cB . 1/x+cC . -lnx+cD . 1nx+c
[判断题] F[x]中,若f(x)+g(x)=h(x),则任意矩阵A∈F,有f(A)+g(A)=h(A)。A . 正确B . 错误