| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a3 `: B$ }, G  B$ g* t* l( W
(x - a) (x - b) = x^2 – ax – bx + ab
% l( G+ g) S. O6 [" _* K(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
( N* s( A( b( h* K' c  t: n(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd1 P1 V- A: [$ s5 c
如此種推，; ^6 k. e, o  H  v/ ]
(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:
6 {7 L- T/ I3 I2 H; H+ `) W( _- f(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:7 K; j( L; [# k* V
咁難既=.="& u2 N( h7 K0 ~4 y' W# D  E/ ~9 ~! y

8 f6 B1 X8 L1 O5 b8 C% d4 _7 b[ 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:
- s% e4 C2 z; B0 ^( V第一個答中有獎' i+ ^$ B9 w) v  n; Y$ F, m5 `
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(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:( ~3 y! i2 C- C, f4 c6 p% e
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7 A" U) ~1 y& k  e/ ^(x-x)= 0 ，所以答案係0，is it?

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2 U3 r7 a( U' \6 r* F; z) q唔似a.math題( O9 U6 o) Z+ c6 A; S5 K3 ^0 V
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:+ v5 p% x, L0 G- c% `8 ~* O( P
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(x-x)= 0 ，所以答案係0，is it?

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3 H( ]3 S' B" Z. |Bingo~

waikong

我係學校個學生會單張見過5 k0 H2 N8 a% p! v# O/ j2 \* E& E8 _
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........." d3 G  y" v$ f, {  y, \  [2 }

! e. `  U# H4 ^' K! e1 P這條問題，貼落吹水版，名副其實
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3 q+ x, v; j2 I$ }$ h# A5 p[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]