| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
4 `  J0 q$ `! z# r- B(x - a) (x - b) = x^2 – ax – bx + ab
4 A5 L; L- ~2 f(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 O. ~3 J, j, x- U
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd- R  B' y; e$ p  V) y
如此種推，$ O: C- k. l$ x! y- U: y0 I
(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:
& A. T( Q; y" d$ V1 b# o' r(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# x) O( M4 f6 Y) h) w, z
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9 j: s/ ]9 s" S$ p4 o[ 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:6 i: C) K  P) E  |  c
咁難既=.="8 B. g) }/ h- w+ w' w* c
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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0 W4 F, N7 o2 e+ {$ iThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:* ~, ~! `2 h0 P3 m1 E- {) Q- X
第一個答中有獎+ ]$ b; v3 A8 X, L$ O0 }9 L0 P8 @

1 T; M" W- E6 @% O(x - ...

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" ^# V( ]) P* U5 t: m; S9 \(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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- _; e1 a' j8 T1 ](x-x)= 0 ，所以答案係0，is it?

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* G6 U; y! s7 z$ T0 y2 r+ o# L4 F唔似a.math題$ W" H* J; k. A7 v4 }
似IQ題=.=. G( F& r! \# t( f: T/ a6 M

3 I; {/ K. J. z8 d- C+ ^0 O* J3 C[ 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:
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(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
9 @3 U) Y1 {" G+ E( O- z# g/ O7 Y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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這條問題，貼落吹水版，名副其實
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( J0 F% Y8 l7 N[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]