函数
在x处的微分为()。
A . ['['
B . 
C . xdx
D . 
[单选题]函数在x=1处的微分是().A . 5e2dxB . 2e2dxC . 3e2dxD . e2dx
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]设函数u(x,y),v(x,y)在点(x,y)的某邻域可微分,则在点(x,y)处有grad(uv)=()A.gradu·gradvB.ugradv+v
[单选题]函数z=xy2+y(lny-1)在x=1,y=1处的全微分dz等于().A . dx+dyB . dx-dyC . dx+2dyD . dx-2dy