| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) Q: Q3 D* M. r& q: y/ M% l! M- l
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(x - a) = x - a
  t* r* z' Y  i, [# h(x - a) (x - b) = x^2 – ax – bx + ab
0 _9 H. K5 F4 _' j) ~$ p$ `(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: |0 S8 u6 }+ o+ a" @& R3 m(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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2 a& F9 ]2 D2 C- `( f! ?(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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. q8 D7 B5 Y6 ?% r" Q3 J) P[ 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
1 H; ~2 B5 n  o

Originally posted by Triangel at 2007-4-18 01:26 PM:- S7 u+ d5 ?" R2 F: \, g
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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; H# Y9 [! j* [6 O; {' n7 d[ 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:
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+ r7 |! W% {- _: j" `[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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& X2 E! p5 m8 nThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, \; b, T5 B; c/ n  E& g
第一個答中有獎; A* x/ ^% D5 Y. A
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(x - ...

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1 {. N( }5 Y- 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:2 B( ]5 Q- [0 G1 v# _4 A  r

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(x-x)= 0 ，所以答案係0，is it?

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/ @2 c) Z& Q5 L( e唔似a.math題: f: U( S9 Y+ k% t5 k3 p: ]; ]! T% i
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:
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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
, b5 J( \; Y3 i( G' c4 Q  n" q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.........7 {5 N% Y3 F! r
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這條問題，貼落吹水版，名副其實! ^9 b7 t( u; x0 P
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]