| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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) e( S# x6 Q* A(x - a) = x - a
- b% Y+ U; S2 K3 A(x - a) (x - b) = x^2 – ax – bx + ab
, u( a! x+ [+ u# P(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc4 B- x5 x# ], J7 N$ Z- ?
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" d  F! s% v  e+ L0 h; Y8 k5 O
如此種推，; J; o% {- d5 P: z) Q: \+ F8 _3 U7 F
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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4 [( P6 t9 y5 D0 F  O[ 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# f$ |6 |& f3 j

Originally posted by Triangel at 2007-4-18 01:26 PM:3 Z" J7 Q1 d* J; X: V5 `, l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc) K$ q6 B% U2 j+ d; u" e) |4 I
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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 Q. j3 J2 {* k  K6 A7 O咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ v! q5 z& b2 g! b# [/ l8 BThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, k( v: p0 H4 e0 E, ^0 l第一個答中有獎9 X3 ]. i* N! j* }& E: T  z* y

+ O: m4 F8 ~, R/ Z(x - ...

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6 d" C) `' _9 k! o3 j(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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9 Z2 U# O: }1 w# B(x-x)= 0 ，所以答案係0，is it?

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3 u7 t8 Y2 i- B- ]/ O* B唔似a.math題
7 q% ?% X& h$ ~2 Q4 f- Y似IQ題=.=4 W+ `. \- d; h( w9 {

* i/ }( K$ Q8 \[ 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 R% Z! b$ q6 T7 Y6 y  k2 e5 m

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(x-x)= 0 ，所以答案係0，is it?

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9 r7 ?1 K2 U0 S  p) ZBingo~

waikong

我係學校個學生會單張見過
; c9 T1 o) Q) i4 t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 x2 a: `* \* i/ x8 X

! x% b$ d5 R  R. A這條問題，貼落吹水版，名副其實  I$ \: l4 O" j3 e

/ B( m9 Z9 W9 f& Y/ Q! n; w[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]