<p>设z=z(x,y)是由方程exyz+z-sin(xy)=1所确定的隐函数，求<img src="https://learnfile.20230611.cn/learnAppQuestion/02/41/024182768a6edea616d6e69d145eda24.jpg" style="width: 100%;height: auto;">,<img src="https://learnfile.20230611.cn/learnAppQuestion/eb/be/ebbed3b6f4