| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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" k0 h% M; b- C(x - a) = x - a: j6 q9 j, {( r% X
(x - a) (x - b) = x^2 – ax – bx + ab- ^) {7 `+ P5 k+ q3 A% y& i
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc/ c5 d) b) R* y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
$ G3 f4 C. O+ C  |5 }$ f" r0 n* r6 H如此種推，) m; z& |* Z& F7 m, ~; `
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 s3 ]$ m" l' S  `+ ^$ c# j
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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:
3 }+ c& i0 U/ o( t0 r(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:! f6 y% S6 J. w: O  {, |* Q8 }& U
咁難既=.="
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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:& D3 n9 @6 m  p# Y
第一個答中有獎
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(x - ...

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5 ], c+ J# N+ F* e  E. Q) Y" e(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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1 x3 S8 U" e4 R, m2 ?(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
7 X& U, M8 y- i% r/ G1 w似IQ題=.=
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( C7 @8 v: e) Q9 a) k! z$ e[ 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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2 \3 k1 g# |; ]+ D8 ~(x-x)= 0 ，所以答案係0，is it?

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' x0 u, d+ `( @1 l; E0 q  PBingo~

waikong

我係學校個學生會單張見過
( e) R4 w2 C& P4 \/ I9 \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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* i6 i3 L4 t+ s2 O! E這條問題，貼落吹水版，名副其實
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0 l9 T% t% K% P4 M# f[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]