Re: [微分] 微分求解
※ 引述《simcity2013 (ONLY THE STRONG SURVIVE)》之銘言：
: y x dy
: Let x = y . Find ----
: dx
: 麻煩各位大大了 感恩!!
dy
I = ----
dx
y ln x = x ln y
y x
I * lnx + ----- = lny + ----- I
x y
x y
=> I ( lnx - ----- ) = lny - -----
y x
xy lny - y^2
=> I = -------------------
xy lnx - x^2
--
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