求多元函数的微积分,z=x^y,而x=e^t,y=t,求dz⼀dt

谢谢,求步骤
2024-11-14 11:27:12
推荐回答(1个)
回答1:

z'x=yx^(y-1),z'y=x^ylnx
x't=e^t,y't=1
dz/dt=z'x*x't+z'y*y't=yx^(y-1)e^t+x^ylnx