| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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+ L. d) u2 ~4 e(x - a) = x - a7 r  k  M! \# L
(x - a) (x - b) = x^2 – ax – bx + ab4 Z& \( {3 r7 C6 Y' U
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
1 u1 O- m2 [2 q+ s) _6 E. E* s(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 ^5 p4 i; b1 y, c* `
如此種推，
' G8 R- j0 g) E6 m(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???: O* U( T4 I$ B) [8 P% \) O
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題
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Originally posted by Triangel at 2007-4-18 01:26 PM:8 w; w0 [' P9 W9 c- D
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc$ j+ X' U- G0 ]
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: K4 x6 d; L5 v7 t[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:' N1 ~9 s! Z2 L
咁難既=.=". E( Z4 {# W4 ?, T
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:7 x$ M: {* i) i% P' ^' ^" \3 i; s5 W
第一個答中有獎
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(x - ...

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, z) f" [) @7 S(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:! m& P: H7 X+ |: _# P- v

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
) A% W3 F+ W' k, o# K& q似IQ題=.=
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1 n8 `% @* s% ~3 O" h0 B" V1 I[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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/ F% I) F) Y: E9 q, e: S( IBingo~

waikong

我係學校個學生會單張見過, j3 _8 f/ Q! P( ^0 p3 \
諗左一陣先諗到

playbr2

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

karen0123

(哭)~~~~~其實我都知係0.........5 }! [& k8 }( w# @& @% G* m) H

+ {  Y5 D/ m; _( S6 M4 J" h4 _這條問題，貼落吹水版，名副其實
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7 r6 t4 W  l3 y[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]