| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 i5 f* T# \4 G+ Y5 P3 r" e

/ f$ [( J4 H, H) x7 q# v(x - a) = x - a5 c. c4 j  N% E- `$ ~1 E
(x - a) (x - b) = x^2 – ax – bx + ab9 v6 d& I" e& \; i
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: i, c: s3 p! a( [9 J, r(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
0 Q/ j! D- J. Q" G如此種推，* C' M" z4 U0 S
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???/ b# r8 P/ [8 q7 e6 k  e

0 F5 |# [; D0 `/ ][ 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+ A; a8 K9 [3 g% Z0 _: G* O2 @! x

Originally posted by Triangel at 2007-4-18 01:26 PM:3 A. V' [0 k! {: `; S: k) v
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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% V: n/ P+ P3 V4 `[ 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:
2 c' f4 ~" v3 N+ \  w7 _咁難既=.="
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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:
: E$ g0 o" x' a( K& U9 m' j" H第一個答中有獎
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4 |- w, O2 s; W* F* K9 K% q(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:* E8 J) `9 K' Y4 T" I) G* L$ v% A

& T2 y1 K) O0 w3 ]! s8 _+ J/ H
% u" f1 ^6 }* b7 L8 A% v(x-x)= 0 ，所以答案係0，is it?

7 B0 o2 l7 F3 O/ w5 y4 p! |  j5 P' V$ Y, H; n+ \

1 W; H  h/ E2 F8 T唔似a.math題
& O7 e5 b4 }+ I) V" X9 K似IQ題=.=
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; q% j3 N# N8 p% a[ 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:
% b2 [- A7 ^$ u& q0 M5 l0 |1 r5 h
1 O- ]5 [. j, G) m4 D' l# m) U6 M6 m8 [6 t
(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
- |, q* H1 J& E' U0 w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.........3 I0 ]2 J7 {+ h8 v5 T' S- ]. B; x1 w

1 w' \. j7 ?, I" [* A這條問題，貼落吹水版，名副其實, K% C, Z- c" V5 a2 r" s4 `

, n# Y# Q& d, X. H[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]