d\dx(f(x^3))=1\x,则f'(x)=
已知d[f(x^3)]/dx=1/x,则f'(x)=?
设2f(x)cos x=d/dx [f(x)]²,f(0)=1,则f(x)=
设f(x)可微,则df(x)=( ) A.f'(x)dx B.e^f(x) dx C.f'(x) e^f(x) dx D
d/dx f(x^3)=1/x f(x)导数多少
d∫f(x)dx= f(x)是否正确
d∫f(x)dx=f(x) 对吗?
d(∫f(x)dx)=f(x)对吗?
已知d/dx[f(1/x)]=1/x^2,则f´(1/2)=( )
d ∫ f(x)dx=?
高数题 d[∫f(x)]/dx=?
d∫f(x)dx = ?
d/dx∫(1,e^-x)f(t)dt=e^x,则f(x)=-x^(-2)