求函数的全微分:
z=ey(x2)+y2
求函数的全微分:
z=ey(x2)+y2
【正确答案】:dz=ey(x2+y2)d(yx2+y2)=ey(x2+y2)(x2dy+2xydx+3y2dy) =ey(x2+y2)[2xydx+(x2+3y2)dy]
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