Math. Find f'(x). with full solution. thanks?
回答 (1)
2016-01-19 6:03 pm
✔ 最佳答案
f(x) = eˣ ln xf'(x)
= (eˣ) ln x + eˣ (1/x)
= eˣ [ ln x + 1/x ]
∴ B
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