| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎# k! S  j. B# F% \  r  L! P) }5 O2 N) q0 u

9 Q. a4 F4 X/ u- i(x - a) = x - a
% q, N" W5 K# p. B" P+ Q. E+ p(x - a) (x - b) = x^2 – ax – bx + ab
" q  k8 ]) C! {9 n& _- i, H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc) @% Z5 W' Q. j: X* y: L: ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
7 {2 H! F  R7 `  o9 R6 f0 v如此種推，9 z( f) c) V# k. A0 {% `
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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' {1 U" X( k# Y9 C. r! m8 g4 a0 \[ 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$ G; ]9 N* w, P+ w! c* t) i+ m) I

Originally posted by Triangel at 2007-4-18 01:26 PM:, ?' ]! h2 M1 M( {7 y0 v' {* X
(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:" I" }% q& H' F$ S/ ~
咁難既=.="
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, |; d, y$ L' U[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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' t( c0 c5 x- d1 A# V# vThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, c+ _% p# F# O( B. F! A
第一個答中有獎
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(x - ...

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+ ?! t/ H4 B4 Y9 X, `0 y(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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! _3 g- d) {+ m' F4 `(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
, f5 M6 W% A4 z: g1 S! c6 K% C5 w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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8 K% G' c  o0 D! i1 j9 n3 F! NBingo~

waikong

我係學校個學生會單張見過
  {6 {9 v0 a% j1 U3 F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.........* ^, u7 @6 Z- Q. l8 t$ F
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這條問題，貼落吹水版，名副其實% x, L8 K5 r% G6 T; U
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]