| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a% q5 k, z1 ^* T3 ?7 C, k
(x - a) (x - b) = x^2 – ax – bx + ab
! B+ E* x) M, r& t0 B5 i(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
  q' w; l0 @) Y/ X/ z, j(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd! F8 Q1 @! e* v# Z9 `
如此種推，2 I- I; D- M. X- E4 w
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% |. S8 O$ Z6 X6 ~* l5 d9 t

( \& c6 d! U/ M* u7 T9 C/ y# l0 G* j[ 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, w/ r* a3 h% V2 R9 M$ [

Originally posted by Triangel at 2007-4-18 01:26 PM:
6 P! _% ]3 Q' p) ~; S& R* w3 i(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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3 i) x+ a8 \7 l

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4 l3 P' l0 m( V7 g$ 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:
! k1 X, p2 ?/ \6 m9 P2 A; R咁難既=.="
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; }4 [" X' i7 n$ u) {" ]/ n[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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1 E! N) |- ?, _+ v2 F9 zThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, e+ l1 |: I% G) b. G5 d第一個答中有獎
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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:/ R8 ~" Z2 m% B/ K- m  n8 k
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/ X9 W( i- u" f' {" u7 W# G- G(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
0 Z) m9 y& n0 q9 m/ o" E! U似IQ題=.=/ }5 ]* \: i7 |1 `6 a

9 D' `4 o- W) X$ d* S( w) X( f5 ?[ 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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5 E- @1 ?! j+ i8 z(x-x)= 0 ，所以答案係0，is it?

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5 p+ J) m3 w7 X9 u7 WBingo~

waikong

我係學校個學生會單張見過
% s: z$ R# a" v" \- W; z/ B$ K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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這條問題，貼落吹水版，名副其實  H( I6 |" ~) J, S" g
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]