Re: 幹!!

看板Hate作者 (豔姿的迷)時間20年前 (2003/09/15 20:57), 編輯推噓6(6推 0噓 54→)
留言60則, 6人參與, 最新討論串1/1
※ 引述《renewalcool (我是天真無邪的高一生^^)》之銘言： : 他媽的什麼鳥數學老師啊? 幹！！ : 最好是這個題目不能這樣寫啦... : (a-1)X^3+(b-2)X^2+(2c+1)X+d　為零多項式，求a.b.c.d的值。 : 為啥他媽的答案一定要是a=1 b=2 c=-1/2 d=0 : 你真是瞎了眼ㄟ，天才的數學老師 : 這個題目根本就有無限個解嘛 : 幹！！ : 我看你要去重讀了。 哀哀哀 零多項式是指當X=任意數的時候 把X代進去 所得結果為零 所以這個式子跟X是無關的 這表示X的各級係數都要等於零 4 3 2 (1) 0 aX bX cX dX e (X ) 其中a b c d e都要等於零 4 否則就會出現aX ...e 使得整個式子不等於零 (X為任意數) 說簡單一點 (我的記法啦) 就是零多項式中 每個X前面都是零 4 3 2 就是0X +0X +0X +0X + 0 (我是這樣記的) 所以依本題 a-1=b-2=2c+1=d=0 因此a=1 b=2 c=-1/2 d=0 哀吆~~ 想我好久前也是無憂無慮的高一生 最後再幹一下 去你媽的教改 用賤狗式數學怎麼把人教好嗎!? 賤狗式數學是只有高斯才聽的懂啦 我如果不是那麼衝 我就不叫衛斯理了 -- 都你都你喬巴工作坊 { ___ } 黃金鹿角盔 {__/___\___} 守備:33 [_ _] [杜依德專用] \_/ 變熊+3 -- ※ 發信站: 批踢踢實業坊(ptt.csie.ntu.edu.tw) ◆ From: 61.230.135.59 ※ 編輯: Callus 來自: 61.230.135.59 (09/15 21:15)
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簡單來說就是比較係數
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要從定義著手才是王道
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你真行..給你拍拍手...
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推~~~啊~~~~
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│◤□︵□▌ │您的東西掉了│
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│◤□︵□▌ │您的東西掉了│
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│◤□︵□▌ │您的東西掉了│
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││█ ◥▌ │這位先生， │
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│◤□︵□▌ │您的東西掉了│
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推
09/17 18:04, , 60F
▍▇︿▇ 2.老子已付＄給醫生，所以病沒好
09/17 18:04, 60F
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文章代碼(AID): #_PRSXA0 (Hate)