→ hotdave:我覺得答案是e 61.64.109.220 07/17
推 ROGER2004070:答案是二分之負e...用羅必達 59.105.116.63 07/17
→ ROGER2004070:加e的定義 59.105.113.73 07/17
推 hotdave:真的嗎??答案真的是二分之負e呀 61.64.109.220 07/17
推 GBRS:我也算-e/2... 60.198.69.14 07/18
推 hotdave:嗯,我算出是-e/2了^^ 61.64.111.93 07/18