求ln sqrt ({x)^2+(y)^2}=arctan dfrac (y)(x)的导数(dy)/(dx).

1.设 sin y+(e)^x-x(y)^2=0, 求 dfrac (dy)(dx).-|||-2.设 ln sqrt ({x)^2+(y)^2}=arctan

(6) arctan dfrac (y)(x)=ln sqrt ({x)^2+(y)^2}

dfrac (dy)(dx)=(x)^2+(y)^2 B . dfrac (dy)(dx)=(x)^2+(y)^2 C .dfrac (dy)(dx)=(x)^

14.下列方程确定了y是x的函数,求 dfrac (dy)(dx)-|||-(1) sin y+(e)^x-x(y)^2=0;-|||-(2) ln sqrt

求微分方程dfrac (dy)(dx)=dfrac (y-sqrt {{x)^2+(y)^2}}(x)的通解.(此题总分值6分)求微分方程的通解.

1.求下列复合函数的偏导数或导数:-|||-(1)设 =arctan (xy) ,y=e^x, 求 dfrac (dx)(dx)-|||-(2)设 =dfrac

3、求由下列方程所确定的隐函数的导数:-|||-(1) ^2y+3(x)^4(y)^3-4=0 ,求 dfrac (dy)(dx)-|||-;(2) ln sq

3.求由下列方程所确定的隐函数的导数:-|||-(1) ^2y+3(x)^4(y)^3-4=0, 求 dfrac (dy)(dx);-|||-(2) ln sq

求下列复合函数的偏导数或导数:-|||-(1)设 =arctan (xy) ,y=e^x, 求 dz/dx;-|||-(2)设 =dfrac ({x)^2+(y

微分方程dfrac (dy)(dx)=dfrac ({y)^2+(x)^3}(2xy)的通解为：dfrac (dy)(dx)=dfrac ({y)^2+(x)^