| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎( I; j" k$ y8 r% f9 B. B1 l+ M9 b

* F( R( S9 v, @! {(x - a) = x - a/ S  e0 O# C4 V. J) ]% @# h  R
(x - a) (x - b) = x^2 – ax – bx + ab; G/ @- j( w. H& X
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc  h: p% J; R% D6 g0 n
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6 F+ R- N: R; g6 _4 s  a如此種推，3 H7 g7 |; `& A5 s4 i3 Z. y
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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4 a4 Q6 j# t- n- i8 x1 W, |0 ?- h[ 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:) _) Z1 b' ]. |* U/ Q- f
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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8 P) a7 X6 T2 L- l7 ^) E5 {[ 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:$ [& ?3 o! b5 \9 @5 ?) D* G: y+ o" s( K
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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& O9 @. ^% L0 y7 |Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
) M0 f" t6 V$ `. R" p第一個答中有獎( K5 @7 Q2 z- z% ?/ B

6 G$ I' ^' \6 }$ c/ \2 Q6 A" `" c(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:2 ]! p4 F4 F1 R: @
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7 z; k6 p  ^: R' P6 @(x-x)= 0 ，所以答案係0，is it?

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% s6 z6 M, _. n) k; K唔似a.math題
' C# R9 n3 `1 _, o1 v似IQ題=.=& {2 R- T1 f7 _- o2 f. F
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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:
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6 N6 e. H  S9 ]* A) A(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
4 V1 d) e1 n2 j" |1 K, p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.........; p4 A9 u, v0 B- [7 e) p

8 p* B: ^% J$ q4 r/ Q1 U這條問題，貼落吹水版，名副其實' s& B9 U8 t1 ?0 S1 z

# _* C+ w0 s, e$ w9 c1 D, j[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]