| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎! K1 K3 ?0 H! q0 _
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(x - a) = x - a
. l% {5 }" ?& Z4 ^/ R! n(x - a) (x - b) = x^2 – ax – bx + ab  C1 R7 b% Y3 F" J: h* g# U' n
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 ?4 I' m, P; p: Q) y5 D
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd  M# f* h- x: t3 N8 S% u  B: t& G
如此種推，
. u( t% O( ^( C; N& g3 [(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
( Q6 P0 v! o: v5 m  M  E: A/ R, a(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc7 J% M# f9 J1 g6 @
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+ {* \' M, B% r) ]6 X3 K$ C[ 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:' j5 G- Z  R" Q) G
咁難既=.="
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" U+ o# S2 k' ^( [9 X[ 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:
3 \0 E/ U( C' ~! ]1 t' j; Y* m! e$ M! H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:: ?0 ^4 U- y- y
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(x-x)= 0 ，所以答案係0，is it?

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' g$ f7 [3 m" k% P9 w. N/ Y5 W1 c- i, z$ X2 y5 M# K% q
唔似a.math題
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3 C1 d& w9 e) [6 R: x8 P[ 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:
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% x3 l+ Q. ]% D- G5 s(x-x)= 0 ，所以答案係0，is it?

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( @) B8 h$ a$ u4 w6 B- Z9 WBingo~

waikong

我係學校個學生會單張見過8 W7 M: z+ j* C9 Q, C* S: s& ~
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/ I/ A) f  X7 d這條問題，貼落吹水版，名副其實
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6 Z" E9 S" G' @6 P. J9 F7 C, v4 P[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]