| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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* Z/ o1 H; [. O" S! O/ k(x - a) = x - a6 i! |$ V) M. j& F
(x - a) (x - b) = x^2 – ax – bx + ab* {/ C) m/ |( C# k( |
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: B; A! z$ G* s( N1 C7 M
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd$ B4 y& L" [& Y" X; S8 {, D
如此種推，
3 u# v) S) m! y) R4 F(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???/ O+ P. A, t# |5 p" ]3 w
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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:
$ M  z9 J! o; e  S' G7 ]- `1 q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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8 |4 [* Q) n1 _) [1 q[ 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:
5 s( J- d1 L0 `0 G9 {咁難既=.=": o( t* I2 @! M- l5 t
1 R6 f. J- p( t" v4 \- B' p" U$ Z* E+ B
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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: N1 l0 L; F" K. a) \Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
* F$ {' w; |0 f  l第一個答中有獎
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(x - ...

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. Y/ d. r1 _% t% f(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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6 L) f0 e2 H9 A(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
7 E. p* u; h( P4 ?5 Q1 U' I似IQ題=.=0 V7 H. m4 B+ C" w" U

* a% s% J4 q8 j( l7 g9 Q[ 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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' t7 h4 V9 ]' l; R* c1 p0 p(x-x)= 0 ，所以答案係0，is it?

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; L9 `5 N  D) q# fBingo~

waikong

我係學校個學生會單張見過# ~* M% N/ S3 j! g+ ]
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 ?& U# C& E- ^  m8 d  p7 o; j

' x; @8 K7 N2 P8 X, Q9 |% S/ S6 Y8 s這條問題，貼落吹水版，名副其實/ b2 c" Q  H8 N/ f$ w
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]