一道求偏导的题如下设u=f(x,y,z,t),其中z和t是由方程v(y,z,t)=0和m(z,t)=0确定的,且f,v,m具有一阶连续偏导,求u对x的偏导,u对y的偏导(当然最终结果是用u,v,m表示)为了表示的简单起见,u=f(x,y,z,t)对第
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![一道求偏导的题如下设u=f(x,y,z,t),其中z和t是由方程v(y,z,t)=0和m(z,t)=0确定的,且f,v,m具有一阶连续偏导,求u对x的偏导,u对y的偏导(当然最终结果是用u,v,m表示)为了表示的简单起见,u=f(x,y,z,t)对第](/uploads/image/z/13053246-6-6.jpg?t=%E4%B8%80%E9%81%93%E6%B1%82%E5%81%8F%E5%AF%BC%E7%9A%84%E9%A2%98%E5%A6%82%E4%B8%8B%E8%AE%BEu%3Df%28x%2Cy%2Cz%2Ct%29%2C%E5%85%B6%E4%B8%ADz%E5%92%8Ct%E6%98%AF%E7%94%B1%E6%96%B9%E7%A8%8Bv%28y%2Cz%2Ct%29%3D0%E5%92%8Cm%28z%2Ct%29%3D0%E7%A1%AE%E5%AE%9A%E7%9A%84%2C%E4%B8%94f%2Cv%2Cm%E5%85%B7%E6%9C%89%E4%B8%80%E9%98%B6%E8%BF%9E%E7%BB%AD%E5%81%8F%E5%AF%BC%2C%E6%B1%82u%E5%AF%B9x%E7%9A%84%E5%81%8F%E5%AF%BC%2Cu%E5%AF%B9y%E7%9A%84%E5%81%8F%E5%AF%BC%EF%BC%88%E5%BD%93%E7%84%B6%E6%9C%80%E7%BB%88%E7%BB%93%E6%9E%9C%E6%98%AF%E7%94%A8u%2Cv%2Cm%E8%A1%A8%E7%A4%BA%EF%BC%89%E4%B8%BA%E4%BA%86%E8%A1%A8%E7%A4%BA%E7%9A%84%E7%AE%80%E5%8D%95%E8%B5%B7%E8%A7%81%2Cu%3Df%28x%2Cy%2Cz%2Ct%29%E5%AF%B9%E7%AC%AC)
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