
[微積] 微分與偏微分

!看不到圖的可以試看看這個 http://addsnaps.com/view/img/35126
紅色的部分應該是多少呢?我微出來是1/x以及x,這樣一來Eq1就變成4x+4
但照理說,Eq1和Eq2應該相同,都是2x+2
請問是哪裡搞錯了勒?
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※ 編輯: a40397577 來自: 111.240.6.247 (01/23 00:01)
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