| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& z9 F  l  u" O- T0 n. \8 H
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(x - a) = x - a5 }, \8 a+ P' Z" d1 G, _0 [
(x - a) (x - b) = x^2 – ax – bx + ab9 m8 i" x+ [) R3 A% x
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% m; }' S/ \* z/ ^3 ?  [+ C7 \(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
) \  v1 ]! T- O/ Y如此種推，1 b7 k5 `2 ^% z, z! T6 A
(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:1 h5 y- t! w& O# P5 b1 E! |4 J1 A
(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:
9 J* {* R0 t/ g( M+ Y& x咁難既=.="" C, P9 |" k) T% P

/ S+ _" q6 F" R4 e0 O[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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7 \# t- S. B0 s0 j1 ^( X5 Y' z3 uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
( Q/ f5 l+ P; ?2 `. z第一個答中有獎) r  `6 {# w$ {! a- F2 G

  n% M6 I# w1 @% I  T  N3 c(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:7 i8 t. _( i( B5 P! D" I. ^

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8 t; V5 e9 W) F(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題% B% {& B: r* D5 v) Q2 G
似IQ題=.=. b  E5 a" f! p4 U! _+ t

+ c" v' D( Y& m, N[ 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:  ]& h3 {: J; E! [7 k& v
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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過
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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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這條問題，貼落吹水版，名副其實
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! _/ D* y3 @3 L+ j4 R) p+ _' F: u[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]