| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎2 H6 `  l6 G% u9 y8 x4 _4 D

+ c$ m& \- A2 J# Q8 _, h% ~6 n3 n(x - a) = x - a7 p: Z1 ~# `' }$ V7 Y6 }% [
(x - a) (x - b) = x^2 – ax – bx + ab
- x! R  S$ y# T; H! q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 h  W2 \: \0 T) R8 w, e
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7 x) y7 ]8 g5 ?6 n
如此種推，5 G; I0 B1 V: C' L0 u: i2 b
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???7 B3 H, s8 D3 M! U7 O$ `
) F4 m9 i! d) e
[ 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# d3 u' g9 s& u

Originally posted by Triangel at 2007-4-18 01:26 PM:
" ~+ p! _( I" s: Q& }( d6 c: a(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
7 j+ j1 y0 Q; `' k
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" B) I7 `0 M4 i[ 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:$ u! }; g5 b  H0 W8 e& D
咁難既=.="9 f( R( ~8 [4 \7 A9 V8 G6 X
  t; m8 {6 o- l$ |+ u- T
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

4 X+ K( h. C) {! }9 Y

& {- u1 A  h6 R+ mThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
* V. S4 c% q4 G8 {. p' M, i; I第一個答中有獎2 X1 Y! h. K: s7 h" F" C
  b) P9 F& o8 _) R2 d
(x - ...

2 o% j! M4 D. n3 ?0 {
% F" I7 f' ]) H/ U) d8 c) F3 Y; Y(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:3 g- F4 B# u' l

7 b  s6 j% `4 k. A+ g1 P7 p4 ?
. p" b2 ?  V3 }6 a- s7 e+ x* S# \$ k(x-x)= 0 ，所以答案係0，is it?

) o! b& D. E+ x. h" k

/ z/ p0 r8 N# ?9 R2 G+ b. M, S7 }( @* k" j
唔似a.math題8 m* b* F: h# F! O1 T" y- s4 T6 ~
似IQ題=.=
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8 ]3 x1 O6 W, G* m7 B7 T[ 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:- |4 a3 _" Y; [
3 z2 n. v  A1 z0 z

& _9 w9 \0 ?& X8 o# k# G$ }(x-x)= 0 ，所以答案係0，is it?

& Z# v3 z$ H. @! [9 ~

: U! E+ _. P* O3 |4 }Bingo~

waikong

我係學校個學生會單張見過
( M; v( ^* G! J" p! B* p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.........
- X! I, z$ C9 q# Q$ ^+ f0 {6 Y) c& ~4 g+ @0 ~6 U# u
這條問題，貼落吹水版，名副其實8 w3 U8 b' s+ q9 A( p  T, g6 s

$ ], X$ B8 b3 N- }5 U$ _[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]