作业帮sin(xy)=x 求dx/dysec(xy)-y ]/x 还是 x/[sec(xy)-y]
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/26 07:46:00
![sin(xy)=x 求dx/dysec(xy)-y ]/x 还是 x/[sec(xy)-y]](/uploads/image/z/4492310-14-0.jpg?t=sin%28xy%29%3Dx+%E6%B1%82dx%2Fdysec%28xy%29-y+%5D%2Fx+%E8%BF%98%E6%98%AF+x%2F%5Bsec%28xy%29-y%5D)
sin(xy)=x 求dx/dysec(xy)-y ]/x 还是 x/[sec(xy)-y]
sin(xy)=x 求dx/dy
sec(xy)-y ]/x 还是 x/[sec(xy)-y]
sin(xy)=x 求dx/dysec(xy)-y ]/x 还是 x/[sec(xy)-y]
x/[sec(xy)-y]
dx/dy .
dsin(xy)=dx
cos(xy)d(xy)=dx
cos(xy)(xdy+ydx)=dx
xcos(xy)dy+ycos(xy)dx=dx
dy/dx=[1-ycos(xy)]/xcos(xy)=[sec(xy)-y]/x