| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎$ e# G1 S( Z7 e2 R/ S9 P( ~

' ?. P$ q% h6 V2 Y( b" c( o5 m(x - a) = x - a/ }+ J, P% R) ^; W
(x - a) (x - b) = x^2 – ax – bx + ab
( }# ?8 C. z- S  `6 c" ]% W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc" W  X& q. {1 B+ `( T
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd/ p# @- y1 G/ \9 f
如此種推，+ `0 Y8 @7 }2 c6 y! `. \9 L. l; x9 J' y
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???+ B2 c1 y, t! H. G, Z" Z$ E

* w) E. B$ k; F4 c6 C[ 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, x) q2 w7 v% A8 i- i

Originally posted by Triangel at 2007-4-18 01:26 PM:7 V' ~- Q+ V8 ~6 t/ n
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 V* L* |% u: x) X. n3 U
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  @/ X& L% u7 ~5 u# J" [6 ~, p[ 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:6 w+ g+ R6 t/ K8 u5 S" e* w
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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% }; v8 O, i9 o' c; g5 J+ v+ [Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:% {1 Z. N7 j3 Y( Q) {
第一個答中有獎6 I* b( v8 c+ _* F; V& E4 y
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(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:
6 B) U2 a+ [0 n  f! ]4 g* }- }0 m% r/ j; ]  A) E
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(x-x)= 0 ，所以答案係0，is it?

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2 ~6 i) g! [3 p4 Z唔似a.math題
' g1 a; k; {; S" R$ E  Q! J  j+ b似IQ題=.=
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[ 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:6 z( ?% W& ?5 R1 M7 J! t( Z5 z8 t

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9 v6 u3 m" g3 ^2 ?: p(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
% s( k" ^; x7 |+ P( a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.........
6 n$ m! e$ {( G1 x, {+ Y& T; l6 Q, g: i9 @
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 ]