| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎" T' ~+ e6 M$ O. b; }3 l$ Q- J* u

$ a' T1 N, g# r, v4 T5 k/ r(x - a) = x - a
: ^# W* T. ?& E; m(x - a) (x - b) = x^2 – ax – bx + ab& ~; T+ z5 n9 f  \; _
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; L3 |2 X) P+ T9 H(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd( h+ c2 G1 ]* e
如此種推，
7 m& u- T7 c( I7 X+ P9 F* Y1 K(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???6 y8 t! t$ f3 y% q7 M1 k
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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:
8 E8 f1 t3 T' G2 p8 z! p9 K% T(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:) @* Z  M8 ?) _8 d+ {8 L- ?
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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" g+ D1 L4 c- d. N, _5 _* j$ jThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:: }- }- Q9 y$ }3 z! ?
第一個答中有獎$ m% ]( p, V% T1 d% [3 N

( W4 H: w  V. k7 G. h* S5 a(x - ...

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- i/ U% |% C% C' @" x(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:& c6 m9 w' ^% R, Z# r; ]
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(x-x)= 0 ，所以答案係0，is it?

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( V4 _7 ^8 E6 z  \! g4 g唔似a.math題5 i1 T% c  @  V( o+ G  Q4 w
似IQ題=.=
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( j( I- l6 o, F: K, G9 V6 `[ 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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: t0 b4 Q" s% I(x-x)= 0 ，所以答案係0，is it?

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3 c* M& u: r& PBingo~

waikong

我係學校個學生會單張見過
6 v" W( F9 D# D* {5 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.........3 i9 r, X% ^) s
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這條問題，貼落吹水版，名副其實
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( L' }1 N' X# x' d: \[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]