| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎' J. V: Y4 P+ X/ f( B

8 f! Y8 E) V% ?6 }4 x: b8 G(x - a) = x - a
2 c4 v6 [0 w5 j# q(x - a) (x - b) = x^2 – ax – bx + ab  F. d& \) @) \& Y
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
' u: a: @( }2 y' @/ s2 K(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
, x% y, {8 e& E$ R# r6 \如此種推，& g7 \* }" Y5 ^/ K2 m4 f; C
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ 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# q( |- ]& |0 v

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ }. J4 Z0 I* n$ O) ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:3 F0 K8 Z9 s6 j5 P5 @- H
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 n1 I: B- k: j7 I% Y! QThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, G# g& ?' T. r  d+ p; W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:
4 x+ ?6 n. y5 j! n9 p0 H1 n8 ?1 u  u
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
, b+ k" r0 T" n) U5 e似IQ題=.=& C1 m4 v" p& C' d2 P, q! O, ~, [

' p  M& {2 A- G7 s: r7 D1 E  Y: m[ 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:  e/ s) P! P, m  z. v  t

! s+ `# i5 o$ E: j, J2 J1 k: t' H- K; K; f3 t3 `
(x-x)= 0 ，所以答案係0，is it?

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& U/ t. i7 C, a3 m4 L7 i- J+ {5 @" x! ABingo~

waikong

我係學校個學生會單張見過1 j- Q) z" D2 u* c, q+ ]! 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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" b8 S7 y: {  L: \: G  ]9 K這條問題，貼落吹水版，名副其實8 u8 w/ d3 r' K9 |! Q! f

  e* y- o7 r! O$ |6 T[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]