| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 e: J- F6 ~9 S9 `! o
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(x - a) = x - a! X1 m. v4 o8 f, E3 u: l: ?! n
(x - a) (x - b) = x^2 – ax – bx + ab
  q& O* ^" ^' V7 M1 b3 O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
" O: N0 H' N5 @5 s) B' ^' X; h(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
4 H: y0 G, g* L. G1 c如此種推，
0 R8 M2 V- s% X! K: ^! u(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: n% y  \! z8 Q: n: {, q

Originally posted by Triangel at 2007-4-18 01:26 PM:
3 u9 `1 I6 I9 r+ d8 @(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc5 Y% j+ ^  p1 \$ h

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1 H4 ^/ @, L# o) r; D. `: D[ 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:2 X- ]& }3 ?4 W7 m" E8 `
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  c, X' F6 ~& EThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:2 @9 ^; ?3 m3 g  U
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:
, Z- z0 ]: c' Z4 X3 ?
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7 b8 z! V1 i% T% T3 I' o(x-x)= 0 ，所以答案係0，is it?

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# M1 f( p, M& Y- f0 @# }- F唔似a.math題) s7 X( n, v/ S) N; M1 b. N
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:- k5 u( C4 U; y4 a
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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
% Z3 W# {( Q" L& k) {, `1 C$ {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.........! \. G7 t0 s4 t5 G$ Z- x

- e  C# d; |% D. C這條問題，貼落吹水版，名副其實2 W# q; D1 r: a9 n: ^

3 \$ L8 V7 Z2 [( y4 ^3 H! P% u9 R[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]