题目 举报为什么d（xy）=dxy+dyx扫码下载作业帮搜索答疑一搜即得
答案解析 查看更多优质解析解答一举报d(xy)=xdy+ydx,here x ,y are both functions of t,i.e.x=x(t),y=y(t).d(xy)/dt=(xy)'=x'y+xy'=ydx/dt+xdy/dt,multiply dt in both sides and it will lead to d(xy)=xdy+ydx.解析看不懂？免费查看同类题视频解析查看解答更多答案(3)
题目 举报为什么d（xy）=dxy+dyx扫码下载作业帮搜索答疑一搜即得
答案解析 查看更多优质解析解答一举报d(xy)=xdy+ydx,here x ,y are both functions of t,i.e.x=x(t),y=y(t).d(xy)/dt=(xy)'=x'y+xy'=ydx/dt+xdy/dt,multiply dt in both sides and it will lead to d(xy)=xdy+ydx.解析看不懂？免费查看同类题视频解析查看解答更多答案(3)