高等数学,微积分,隐函数求导

职业培训 培训职业 2024-12-28
两侧对x求偏导得到e^x -ye^z -xye^zdz/dx =0, dz/dx = (e^x-ye^x)/xye^z对y求偏导e^y -xe^z -xye^zdz/dy =0, dz/dy = (e^y-xe^z)/xye^zdz = (dz/dx)dx +(dz/dy)dy= (e^x-ye^x)/xye^z dx +(e^y-xe^z)/xye^z dy

两侧对x求偏导得到

e^x -ye^z -xye^zdz/dx =0, dz/dx = (e^x-ye^x)/xye^z

对y求偏导

e^y -xe^z -xye^zdz/dy =0, dz/dy = (e^y-xe^z)/xye^z

dz = (dz/dx)dx +(dz/dy)dy

= (e^x-ye^x)/xye^z dx +(e^y-xe^z)/xye^z dy

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