| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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8 H7 @5 p0 e# R5 h& Y(x - a) = x - a/ X, s9 K5 e# E- v5 q0 T' Y
(x - a) (x - b) = x^2 – ax – bx + ab
  z) C4 C6 I. P) l! E5 A+ ]* V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 y$ q- ~$ L0 ?) ~7 e# L) W) Y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd9 i5 Z3 b/ A; o& r
如此種推，0 H+ J' X) k7 i& U6 ]( o
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- F# ]5 o5 B' P3 w; T
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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:- D( Y; v1 m' Y9 F+ Y$ X. r% c0 o
(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:
8 V+ K" n; }# {$ ^5 ]6 C) l! t咁難既=.="
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# F0 {6 d* K) Y5 @, C+ h[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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3 a+ I) u  d8 Z  J+ yThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
. C8 Y% a9 o+ C1 ]- v2 [4 N" T第一個答中有獎) i7 u  R) ~: J$ {

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+ l6 E( S) {. N% k8 `. V(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:3 c* H, y1 @/ b; s  i, V2 F% k
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(x-x)= 0 ，所以答案係0，is it?

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* I$ ?% s8 I! }% R7 Q6 E唔似a.math題
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4 `: b5 R. j) _) O/ k4 N[ 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:5 ^7 K9 h9 t" b6 U9 ?0 B5 {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
& O) f' J! G* I4 D( ?1 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.........+ V& j4 x6 `/ a4 _  U0 t* i! X

3 p- I& e5 I" d1 I$ c這條問題，貼落吹水版，名副其實' s" }! X, W+ d; [/ k3 ^

5 F( \1 |/ A  N" o8 b4 \[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]