| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎* y: {' R* \  G  Q! F: I3 P

! u) d) X5 F+ E' V1 v/ ~* n6 a(x - a) = x - a3 ^3 [% a+ S* K: }( b) R
(x - a) (x - b) = x^2 – ax – bx + ab
* ]3 ]5 \) w0 j+ s& M5 R- Y  D(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc1 Z$ B: m( H! t* m" ]. k
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
/ b, W8 w( R9 `/ |3 V/ S4 X( i如此種推，
5 k. N& L3 z; p: p(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:3 z; Y( s( D0 @% n" {. |0 r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc  F0 ^# \0 P$ S3 z* \
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* n$ H& ?1 ^- |% ^[ 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:" @! ~* d, ^- t* Q* s
咁難既=.="3 _0 R  i6 \5 `( [2 k  O

. ?, O8 ^2 ~* C+ L# r$ J9 Y[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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. i4 B; U  m$ K) YThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
. b) K7 ^7 ]7 J& c, z$ h第一個答中有獎
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(x - ...

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) N+ ~; m7 M1 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:. d: q3 @9 U, R
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(x-x)= 0 ，所以答案係0，is it?

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8 t$ \! Z% X7 E* B" ~唔似a.math題) Y9 d% \! u" _
似IQ題=.=$ C$ K3 V8 {# Q" D

/ _3 k5 ?- k% J0 F0 x[ 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
5 j, p! t3 a- N+ V$ q( C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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/ _6 T& j5 M' w# G( O# ?6 e這條問題，貼落吹水版，名副其實: S5 _  Y4 o$ ~3 n
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]