- 首页
- 国家电网
答案:
-
1.f(, y) dy,u ~ y, v=T-y
-
2.(2)[dy f( y)dx dy f(y)dx
-
3.()" f( y) de(B)dy"f(x y)dr(C). dr, f (x, y)dy(D)dxf (, y)
-
4.(8-4-6)设 y x z = ,而 v u x + = , v u
-
5.5.设x=f(u,,w),y=g(u,v),z=h(u,v,)求au,au,u
-
6.u=f(x,y,z)
-
7.1-(x-1)21) da f(r, y) dy da
-
8.(4)|dz/ f(z, w) dyf(z, y) dy
-
9.二元函数\(z = f\left( {x,y} \right)\)的全微分可以写成\(dz = {f'_x}\left( {x,y} \right)dx - {f'_y}\left( {x,y} \right
-
10.(10)w三f(x,y,z),x=u v,y=u-v,z三,aua'auxw d T