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作者 ARHAN 在 PTT [ Math ] 看板的留言(推文), 共13則
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1F推:感謝!我已經會囉!12/06 19:07
9F→:3f那太神奇了!!但我看不懂啊…12/06 19:09
2F→:這裡我懂 但是不是要先求f-1(0)?01/14 14:06
3F→:f-1(0)=x 這樣不是要先算f(x)=0 先把x算出來嗎?01/14 14:07
6F→:恩...所以現在b=0,那a我求不出來= =01/14 14:10
9F→:還是不懂... 微分完後是不是變成1/(1+X^3)^1/2 ?01/14 14:13
11F→:所以答案是1/f'(2) ? 這樣子嗎?01/14 14:15
13F→:還是我微分錯了= = 微分完變什麼?01/14 14:16
15F→:所以現在X代什麼會是答案? 2嗎?01/14 14:18
16F→:所以是f(2)=0 f-1(0)=2 這樣?01/14 14:18
19F→:所以(f^-1)'(0)=1/f'(a)然後a=2代進去就對了!是嗎?01/14 14:22
20F→:喔喔!! 這樣子我懂了 所以2是用判斷出來的是嗎?01/14 14:23
21F→:真是太感謝各位大大了!! 謝謝你們!01/14 14:24
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