推 lucasyao:直接寫= = 61.224.70.182 06/02 22:20
推 tim8238818:不要管它吧 近似值要查表? 114.32.132.116 06/02 22:39
推 FightAcidlly:題目PO出來看看?140.112.250.117 06/02 23:19
→ GLP:97成大 tan(1/x)那題~ 219.70.171.81 06/02 23:30
推 lovekwen:你誤會題目的意思了 220.136.222.3 06/03 00:10
→ GLP:誤會@@? 219.70.171.81 06/03 00:17
推 lovekwen:arc tan(pi/2)就是答案了 220.136.222.3 06/03 00:17