| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a3 _+ ?+ x" i9 V" }% M) X; x
(x - a) (x - b) = x^2 – ax – bx + ab
+ t0 }% O3 [7 [, k, l(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% f+ O5 Q6 {  ]3 ?3 F. Y( U- G! z. s
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. {, {: g8 p2 a, D如此種推，! }6 s8 f, ?( O- k5 p+ ?
(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:. g$ y$ q( j: ]0 }5 }# i/ T" h1 a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc2 a5 H( ~7 P1 y

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1 l5 v; j/ V& a& Q[ 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:1 m0 I. D- B& [; m5 c. a0 S
咁難既=.=", s% Y6 t/ ^; y

. ]  G* M& p2 ][ 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:
# u) p. M; X6 X第一個答中有獎. A$ |  F' Y* V

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' M& j- K" ~; r& Y5 d2 F(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:7 i0 B, j9 ]7 B5 N2 K% ~' X8 c

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題0 z# H. L1 B! ~' h* a4 R' Q
似IQ題=.=7 p! ~0 z. g( ]1 \/ k2 C4 }
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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:- y' B% m: Y9 ~" w! Z

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+ _4 B# ?  A- }# @(x-x)= 0 ，所以答案係0，is it?

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! m% S0 i2 d: B' `& a4 n6 ZBingo~

waikong

我係學校個學生會單張見過% B& U7 g) b8 h2 Q% }% V6 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.........
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; v2 ?1 Z3 O' v4 y- _" H" Q5 b這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]