| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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- W$ E& o% C1 r2 s3 @0 x(x - a) = x - a
3 A3 V+ X4 g4 m$ o(x - a) (x - b) = x^2 – ax – bx + ab
. N1 k( a9 k" b- X0 e(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 p8 E! l" e( O8 `! P3 L. ^( [
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; B6 p" R* z3 |  h( |如此種推，
, ?& m" v- C/ G3 M4 {* y(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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  h4 A  n; C: L/ |[ 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:) I, [( B( j3 E9 q0 k; A
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc- J: D, L$ a& j; e

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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:
) J5 d0 @# f0 r( P咁難既=.="1 U) }- Z, X7 _" |
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[ 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:6 |/ a) I& k9 E9 Q6 h
第一個答中有獎/ I( S/ U' a; N) T' U4 S3 {
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(x - ...

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9 H$ {& b6 U1 X1 d9 K(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:8 P2 o5 ]3 I- Z0 n; s, ]8 k
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(x-x)= 0 ，所以答案係0，is it?

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' Q8 W/ c# F4 I& [/ ?8 U$ d+ o% o6 e唔似a.math題
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! i! e6 [# U6 O  o! b[ 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:8 Z8 H8 r2 A" F. H+ Y' w
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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$ P  y1 d$ F; v) h
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.........2 N+ x( v* x0 w  |- M+ w+ i
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這條問題，貼落吹水版，名副其實
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: t6 q2 f1 n7 \$ u[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]