推 f770622 :羅必達?? 10/02 22:10
→ suhorng :1 - cos(x) = 2sin^2(x/2) 10/02 22:11
推 ziizi :恩~羅必達就可以算了. 10/02 22:13
→ gas04032006 :羅必達 不會= = 10/02 22:22
推 j0958322080 :換成-(cosx-cos0)/x 10/02 22:26
→ gas04032006 :有人要解一套給我看嗎= =?我都忘光了!!! 10/02 22:27
→ ricestone :羅必達要怎麼忘啊... 10/02 22:30
→ Vulpix :二樓正解 10/02 22:51
推 calvin4 :不可以用羅必達法則來導出sinx/x與(1-cosx)/x的極 10/02 23:31
→ calvin4 :限。雖然結果是對的,但邏輯是錯誤的! 10/02 23:32
→ goshfju :推2f 10/03 00:36
推 j0958322080 :我之前才在高中生當寶的那兩本書看到她這樣算= = 10/03 00:49
→ goshfju :是阿. 所以我才說多看原文書 10/03 01:25