Question

求函数导数e^x-e^y=sin(xy)

Answer 1

e^x-e^yy`=cos(xy)(1+y`)
e^x-e^yy`=cos(xy)+y`cos(xy)
e^x-cos(xy)=y`cos(xy)+e^yy`
y`=[e^x-cos(xy)]/[cos(xy)+e^y]