| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎/ v7 C9 d8 C4 i4 E
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(x - a) = x - a3 X1 ^+ l- K5 m3 b7 \
(x - a) (x - b) = x^2 – ax – bx + ab7 S3 Y3 A( `" C' K4 `
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 U9 {8 V+ G  F: L- y. N7 }) C. y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 t: `' @" \. P
如此種推，* |. z+ r$ u; {1 z1 T
(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:
7 Z1 D1 Q& h' c' V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc' f7 b# x3 ^/ S4 H3 p8 Z

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; V3 X% w7 Q& y5 E[ 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:
& R. s3 N$ @7 |" C! R. {咁難既=.="8 `4 b6 _2 ^3 l+ W& z/ }- N
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  {* Y! A$ \3 h7 M' x1 dThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:- S3 {: L3 s% M0 B4 y
第一個答中有獎
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: I# Y+ @2 r- [0 w(x - ...

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8 A! k9 ^6 F, Q5 L. ]+ o3 m9 V# S(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:: j: r& y/ E; f7 m, e
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
3 f9 w) x0 I1 S* Q2 P似IQ題=.=1 m, l" j+ S1 {$ u

3 a+ X, ]3 d) B& b; K. u4 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 ]6 U- X. E. ]" H$ w3 X: l; `
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8 b! V) o4 Z! V7 \; i( Y(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% o! ]. M7 U& N  ]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.........1 n, S7 ~8 ^( o1 l5 u2 s# w

+ _7 q% b* w$ b0 l$ w6 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 ]