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Originally posted by 落雷 at 2005-3-21 08:05 PM: cos(a+1.5)=cos(2.5-a) 全部人炒晒啦 通常來講,1.5跟2.5都係in radian(你無打到°就當我咩都無講過) 仲有,沒有講題目問乜 就咁唔會知道佢的做法係咪有問題
Originally posted by WildFlowers at 2005-3-20 23:33: 你笨喔…為啥不對… 當a+1.5=2.5-a時,兩邊同時cos掉都相等的嘛…
Originally posted by 小耀 at 2005/3/21 18:15: "菜"...我唔信之前發果次係o係1988年前... p.s.:我明你的意思...只是說說笑吧[E-TeH]
Originally posted by 小耀 at 2005/3/21 14:21: 是嗎@@?在看此post前,me未見過...
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