| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎4 p/ i' m) a' g
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(x - a) = x - a) _' u2 H- k; B' {  @% ^2 v  \$ U4 ^
(x - a) (x - b) = x^2 – ax – bx + ab
- _/ X% r6 T/ x; G: G8 P; a2 d(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& T( G6 ?7 r& R) v: X% E: t1 H
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& `/ Z) {: T. C
如此種推，
* b0 }5 V3 X, u; ~/ c9 u4 i5 k(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???( v2 S3 m$ u5 ]1 Q/ o0 s

7 ]$ H7 ^9 m# C; s[ 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:
, ?2 P9 a1 A: V* D, c) d(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc* m% V/ s% p+ z" K( ~) p4 l7 T
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- }/ d* }- q. A2 L[ 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:& z% Q  e% Y4 a* P. b: P6 Y
咁難既=.="
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[ 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:
. y9 Q, ^/ i8 f+ Z5 U第一個答中有獎
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- B( _7 |' @- X0 V8 d% H/ Q(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
, G7 [) ~' C! A7 G* Q/ b7 Y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:+ @& _# s+ q; |
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(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
3 O; ^4 D9 S! i& u% w6 W; v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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! ~: g. d" L3 t  i這條問題，貼落吹水版，名副其實
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9 @3 x: \: u0 C" S[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]