第1个回答 2018-12-09
x=3t^2+2t+3
dx/dt = 6t+2
dx/dt|x=0 =2
e^y.sint-y +1 =0
e^(y0).sin0 - y(0) +1 = 0
y(0) =1
e^y.sint-y +1 =0
(sint+cost)e^y. dy/dt - dy/dt =0
=> dy/dt |t=0 =0
dy/dx| t=0
= dy/dt |t=0 / dx/dt |t=0
=0本回答被提问者和网友采纳
dx/dt = 6t+2
dx/dt|x=0 =2
e^y.sint-y +1 =0
e^(y0).sin0 - y(0) +1 = 0
y(0) =1
e^y.sint-y +1 =0
(sint+cost)e^y. dy/dt - dy/dt =0
=> dy/dt |t=0 =0
dy/dx| t=0
= dy/dt |t=0 / dx/dt |t=0
=0本回答被提问者和网友采纳
第2个回答 2018-12-09
我可以帮你详细解答追答
我加你QQ给你发答案
相似回答