| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& g' D8 W  Q3 i' O+ F3 L- L
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(x - a) = x - a
* h2 S% V: @+ P2 y, d6 g(x - a) (x - b) = x^2 – ax – bx + ab" J3 I' o0 {1 X. b$ ^4 C+ o" }6 H
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 n& v& I- i0 K1 n5 m+ w
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
8 R* [+ e' X. @; E/ L; m如此種推，. ]+ G5 I) z+ y& D2 ^! U% X4 q1 X2 ~
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???) r! |- S& m9 R3 Z6 d% O& g$ u
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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; b& K: n4 N* h8 H$ R

Originally posted by Triangel at 2007-4-18 01:26 PM:  v" i1 ?  }$ |6 U5 N
(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:- a6 F  N; h5 w
咁難既=.="1 M" z. v5 x" Z% S5 Z( a7 P

+ `# H9 G2 n5 V5 h( b" ]) c[ 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:5 {3 K4 j- S  L; t8 S$ h+ s
第一個答中有獎
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+ j- a3 j! J+ ?/ W6 {, I: Z(x - ...

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, O2 R" P3 \5 i" M2 R. C(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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唔似a.math題
& {$ L4 _7 {, A似IQ題=.=
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& {/ G1 D* X1 ~[ 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:1 C! B% b3 q" ~: F) a; P/ M& }% ~3 U
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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, ?" C( i% Z% [6 C2 E5 {
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.........
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& p- Q1 v' y$ W/ a( C這條問題，貼落吹水版，名副其實: G; E9 I7 C3 V& a  y% A
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]