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Fw: [問題] 不連續不可微
[ SENIORHIGH ]24 留言, 推噓總分: +6
作者: jashbala - 發表於 2013/05/21 12:38(12年前)
1F→Vulpix:導數的定義裡面...f(x)-f(2)這兒你是不是寫錯了？05/20 16:00
2F→Vulpix:"導函數在2的極限"不是"函數在2的導數"05/20 16:01
3F→Vulpix:因為導函數不一定要連續05/20 16:01
5F→Vulpix:抱歉我看錯了，可是你的函數f在x=2連續啊。05/20 17:14
6F→Vulpix:所以不是反例。05/20 17:14
8F→Vulpix:2^2-5*2+7=1啊，你加法有沒有檢查過？05/20 18:27
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