求由e^y-ysinx=e方程所确定的隐函数y(x)在点(0.1)处的导数
问题描述:
求由e^y-ysinx=e方程所确定的隐函数y(x)在点(0.1)处的导数
答
e^y-ysinx=e对x求导
e^y*dy/dx-dy/dx *sinx-ycosx=0
解得dy/dx=ycosx/(e^y-sinx)
把x=0,y=1,代入得dy/dx|x=0 =1