| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a1 W" l) X) r1 K: |& \9 _4 ?% I
(x - a) (x - b) = x^2 – ax – bx + ab
  z* M' q! q, X: H2 O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
8 v& Q) F# u4 I# N7 S8 I(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
  X( ?# S9 ]3 p如此種推，
$ s) u6 X8 m: s6 U7 R% |(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
$ c- x( `" l) k# o; y6 H(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# f! ]2 ?+ q# G
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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:7 }3 |6 P  Z6 j2 z7 N
咁難既=.="
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6 F# @! [4 @  T8 R0 n[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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# W9 R; a  R# T$ d; H: a5 gThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
& `3 s, Z  R: r, k第一個答中有獎4 f4 M8 Y" }3 }: g2 B

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9 D6 E. L, u5 g# |) 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:9 }4 m$ v% S, k; G6 i8 Z
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(x-x)= 0 ，所以答案係0，is it?

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" M8 \: n) o5 k! a' m唔似a.math題0 }6 l3 G& u# S% R4 g) f; U( t- e
似IQ題=.=6 p( b6 z& {' z& Z* M
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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:- h, [7 G  `3 C
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; p4 _' R# h7 l(x-x)= 0 ，所以答案係0，is it?

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! N/ }: s" T& _0 U4 L* t1 J! U$ TBingo~

waikong

我係學校個學生會單張見過9 [6 r  H' G( V; e; _  w
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.........
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. f9 r; C: E; S# w4 e% I0 q9 L+ t這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]