[微積] 偏微
f(x,y,z)= x的y次方的z次方 z
y
x
我會算f1 跟 f2
但f3 有點沒頭緒
答案是 z
zlny y
ln x * ln y * e * x
想問問 求f3該如何下手
謝謝^^
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