| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎5 V" ?4 K+ }5 Q# S& [7 s0 `
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(x - a) = x - a
9 v6 P1 n( a% k(x - a) (x - b) = x^2 – ax – bx + ab
* G! N( D6 \9 A: |9 j: J5 R2 H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc; }3 C) O' z! b: L8 i
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd, j' X3 E9 |$ H
如此種推，
1 \2 w4 P9 F1 @' c- h(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- ]' I: U) Y; P- T9 q+ [- C

+ L+ y& k' V$ b+ v[ 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:& T; x$ Q( W5 n  k- Z  B
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc! t: R# g6 }5 O! m+ G9 a" a3 [
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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:
! f5 J( N( ~- B/ e9 j, ~# @咁難既=.="
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: b+ D- }- q+ O4 M/ j# o( }[ 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:
$ }  t7 E3 E& ^- a! L1 q" o第一個答中有獎% Q0 u% ]7 y5 Z7 F, `& m/ p9 q

( p2 B) p6 |! g: l! t4 ]* C+ j( Z(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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題& n7 |1 J& A! b) B- G$ I
似IQ題=.=
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2 F) C  z& E3 C- N$ }[ 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:  P+ Z2 B) w& i
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1 w3 {% d' d* h! W  v# a9 j& ^(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% j3 H: P% d6 A, @+ x9 R. Y
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
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]