[考古] 90中原
f(x) = x5 + 2x3 + 2x , 且 f-1(x) 代表 f(x) 之反函數,求 (f-1)'(-5)。
(b) 已知 2y2 = 28 - x2 + xy , 求dy/dx 在 (x,y) = (-2,-4) 之值?
不好意思囉~~最近有很多題目要問各位~請求見諒我的程度= =
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