| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎( s! O8 q% ?9 D$ b
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(x - a) = x - a, g) O1 N; a0 B" t8 R
(x - a) (x - b) = x^2 – ax – bx + ab; l  `, d/ P  \
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc( X7 f$ |  U: V
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
" z+ E" N4 }- J" |( p) C如此種推，
# _5 U3 y0 L& m) U. j(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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( J  M8 Z; ^0 |7 H6 h2 c; Y

Originally posted by Triangel at 2007-4-18 01:26 PM:  q% ^4 {! Q+ S4 z' ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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0 Z- \+ R3 E1 Z* K/ x[ 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:
. w8 @. [3 h  R1 c' R6 h$ Q咁難既=.="9 l* t9 t8 E$ _' Z* v& Q4 h) t
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:8 u% J) y% q7 _- k5 q! h$ ?* S% V
第一個答中有獎6 Q2 f' `8 O2 d# }2 |& r

! J6 J& @; _5 [3 X$ d$ W(x - ...

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3 u& M' n: A# C3 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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" f$ _0 ~9 f3 o9 T- n+ r(x-x)= 0 ，所以答案係0，is it?

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+ Z7 d1 O5 I# `8 X8 l唔似a.math題
) I! Y& Q* F0 |: p" H" K似IQ題=.=; c: @8 Q: d0 p$ V

7 m, \; ?* P, R6 ^) O[ 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:9 q- k3 G9 B/ {6 G& B. h

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* d) n4 i* s8 c$ h(x-x)= 0 ，所以答案係0，is it?

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0 s" }0 u3 D9 c2 t0 tBingo~

waikong

我係學校個學生會單張見過; F" ]& o" j+ W& Z. w# e; j* u
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 h8 y: `6 _" l" B. i

/ v2 {1 z% C) n! }7 [7 K, z這條問題，貼落吹水版，名副其實
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, b: C2 ]! i) ?. m% B3 H6 [8 A* S[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]