| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎4 A/ L+ E2 V3 i" P9 n
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(x - a) = x - a
2 f: D5 e0 a* @$ H' V(x - a) (x - b) = x^2 – ax – bx + ab; J; @7 [" o) e6 {: ?
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
7 [$ n' E: o6 E* H* {(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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% T) B# g6 i7 M' [6 T(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???  s5 T7 [3 o2 s: l6 r4 {3 X7 k0 b7 e- e

. p3 E, w# U  b5 v( O& i# v[ 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:
4 G3 X! @) t" K(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:
! O8 Y& H1 C/ g. |3 P. s& M咁難既=.="
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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:
- L  G3 A# Z# _3 W$ @# A第一個答中有獎
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) U0 W: L$ t1 i- g% R(x - ...

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: q- s; v9 e6 l4 S0 j2 z( q+ C: W(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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' t2 i8 B/ L( b* t4 j) h8 ?唔似a.math題2 @& u* z+ k4 V! r% X
似IQ題=.=
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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:6 L4 f3 \9 W) A- B6 b# v
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(x-x)= 0 ，所以答案係0，is it?

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3 O# [# k; X# N8 H. @) [Bingo~

waikong

我係學校個學生會單張見過# F. B8 P# R6 z0 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.........% W  |  b: |. Q
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這條問題，貼落吹水版，名副其實  u; c3 h. B+ P8 J: a8 y' l8 U

$ Z3 n5 Z+ A! ^- ?9 T1 l$ i[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]