设sin(xy)-x^2y=0,求dy/dx,求导什么的都要疯了!
问题描述:
设sin(xy)-x^2y=0,求dy/dx,求导什么的都要疯了!
答
等式两边对x求导:cos(xy) *(y+x*y') - (2x*2y+x^2*2*y'=0 解出y'即为所求
设sin(xy)-x^2y=0,求dy/dx,求导什么的都要疯了!
等式两边对x求导:cos(xy) *(y+x*y') - (2x*2y+x^2*2*y'=0 解出y'即为所求