| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
* R% @( l7 G& _$ L$ `7 z6 G. X(x - a) (x - b) = x^2 – ax – bx + ab" a# A. ]& b3 X4 Z% h
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc$ K9 ]9 S2 e; d4 M& k2 z% ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; e3 \5 l' ]* b4 m, i如此種推，
1 L& c- s' w6 a0 L& H, R8 J  \6 u(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 G- O6 p1 b" f6 M

( A. I8 w9 G8 K$ J/ U[ 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:
! r. i' e  Z9 z7 M5 q2 U: g1 x(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, q( R4 C7 i$ `1 P
, y3 Z& l8 |3 P# I% \) ?

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[ 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:4 u( `+ Y: e- @" u% B9 {% X( ?
咁難既=.="( O; M- c% H# G# m" H1 ?: J  ]% c6 `

( X( D9 F, z$ c: P8 f8 x9 W[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  Q; H0 N% N0 s0 I9 r1 Q; zThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
! v" [5 K* D+ a  q! w* n1 K第一個答中有獎
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0 K, K9 |1 h' @- W( e(x - ...

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& g3 y; f) B( B5 U& o& Z(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:: g( u& h( @: b. H, ~# T

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(x-x)= 0 ，所以答案係0，is it?

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' s- I2 _* r2 H8 d5 D. W唔似a.math題
" `4 E. \0 B6 m似IQ題=.=
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" Z1 I7 ~1 m% a. t, ]1 `[ 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:3 K  ~2 u7 X* T$ q# }# E) x4 R

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' h/ J8 Z$ u8 r8 O: i(x-x)= 0 ，所以答案係0，is it?

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% r" Y6 }) j- [, H/ vBingo~

waikong

我係學校個學生會單張見過, b; h* l2 i+ J) K5 X/ _
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.........
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8 n, N" f& Y/ k' v這條問題，貼落吹水版，名副其實- F8 c% t. C9 U: t4 G5 x
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]