z=e^[ln(1+xy)^y]
=e^[yln(1+xy)]
z'=e^[yln(1+xy)]*[ln(1+xy)+y*1/(1+xy)*x]dy
=e^[yln(1+xy)][ln(1+xy)+xy/(1+xy)]dy
怎么计算对y的偏导数,其中最后面个y是指数 z=（1+xy）y
z=e^[ln(1+xy)^y]
=e^[yln(1+xy)]
z'=e^[yln(1+xy)]*[ln(1+xy)+y*1/(1+xy)*x]dy
=e^[yln(1+xy)][ln(1+xy)+xy/(1+xy)]dy