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標題: | TriTri | A-Math 加分題 | [打印本頁]

作者: Triangel 時間: 2007-4-18 01:26 PM 標題: | TriTri | A-Math 加分題 |

第一個答中有獎

(x - a) = x - a
(x - a) (x - b) = x^2 – ax – bx + ab5 M* b5 k% ~9 }, E5 f; {. ]
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc" Z. m( F5 D# M6 D+ ]9 \
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd- o8 [, i) U5 R0 z4 V- L0 i
如此種推，$ w, a1 r6 A, E. L$ x
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???

[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題7 _) T, ?7 S' G$ Q! E& }

Originally posted by Triangel at 2007-4-18 01:26 PM:% w! W0 C4 |5 k2 ~/ a
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

作者: Triangel 時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:1 R: S, u+ b4 q2 Y9 U. a v
咁難既=.="2 u2 e3 ^4 ]% y. }! w5 U0 s

4 e% S$ B Z. Y" j6 n) Z[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:9 N& L7 R- v5 q# S/ v! w
第一個答中有獎8 r7 k" A7 ?! w* ^- ~& K8 t g9 k
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(x - ...

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(x-x)= 0 ，所以答案係0，is it?

作者: 大大 時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:
) S" W4 a/ z @' C6 n* m, V8 j l0 p& }
* l1 K) g: f) h
(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
似IQ題=.=

[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

作者: Triangel 時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:2 K, Y% g3 P' [

. ^2 r' B4 L# c! R
9 e5 C0 L, L: v! F& S v. N(x-x)= 0 ，所以答案係0，is it?

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Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

諗左一陣先諗到

作者: playbr2 時間: 2007-4-18 04:00 PM

我吾識答啊http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif~~~ http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif

作者: karen0123 時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........) M9 K: O9 F# ]% e/ e# ]

這條問題，貼落吹水版，名副其實

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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]

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