| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
4 H! h& {) t* D- `(x - a) (x - b) = x^2 – ax – bx + ab
4 d; j7 T* x' ^; ](x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc( T* K2 Y! y9 b& R) ^& S8 ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
4 g* b0 |: }5 V2 V! B' P4 c6 Y: Z如此種推，
, ]6 ]( k1 J5 t, L$ K(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5 w% y9 w. ~& B$ p& u. Y! @

Originally posted by Triangel at 2007-4-18 01:26 PM:
; w3 }2 i: n, D% H5 a7 D$ l7 H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc4 W) S7 _" f# y: r$ d! {) v
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2 p. C$ B! K1 B2 G[ 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:
) j* k% Z; ]6 J4 l4 T! N3 O) }咁難既=.="/ P3 v7 H, K, L* C, J

- b6 K, o3 h0 r* k[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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1 T; h- n; _6 w+ x" `2 ^Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ D% x( I4 c" D8 d) E第一個答中有獎7 o2 {+ ]0 Q8 O2 R5 t$ r

, k) {/ n  C/ |  A  Q+ a(x - ...

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- Q& p+ J4 _( q" S) c(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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' h! Y( J4 B) B6 l, w(x-x)= 0 ，所以答案係0，is it?

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" {1 w1 [( u/ `7 T* {+ _唔似a.math題
+ [; h# y; G, w9 h' r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:# e# z' O2 f  o1 C9 K, @& N5 `4 J

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8 p1 x" G& l1 Q7 N(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
- l" E( p- G: l( L9 X  U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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# L0 T. T% {' d# i0 Z. c6 w這條問題，貼落吹水版，名副其實; r+ u- E# }% ~. \3 ~  V2 E
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]