| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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- K: ^/ E, H% V. {(x - a) = x - a
; h% f: C, n4 g: T/ I1 m7 S5 P7 E2 W& z(x - a) (x - b) = x^2 – ax – bx + ab
0 T/ f* ?3 _, f: K(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ G9 v# x4 T* f7 A(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd: P& c  i+ x5 y2 L6 O1 d9 I
如此種推，+ ?- l. U# i9 t* Y& O
(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:! v7 y$ Z' ?* T1 E/ S4 S
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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" l9 G7 F' H" P# G) x[ 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:
, V7 F8 N9 [* r& S咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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; M, U4 M' k9 ]/ w, x* i4 P4 U  IThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 j' d5 [4 @$ w2 C6 ]  D2 I第一個答中有獎
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0 q% k8 X7 g7 f(x - ...

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9 O( D) Z: y. L9 H8 N% G3 q(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:5 C( J2 u$ H  V8 @/ b

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
7 N  D! f2 O7 o似IQ題=.=6 A1 J6 C9 j( S9 w

) g5 ^; R3 k, g7 u' e: {2 L( m# y[ 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:& ?& W' A. i4 s$ o: {# n4 \& T& E
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(x-x)= 0 ，所以答案係0，is it?

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) {3 Q+ ]% S$ U7 e7 y$ pBingo~

waikong

我係學校個學生會單張見過7 Q0 h9 _7 v8 K6 B+ u  A
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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" p' a7 H$ s3 Q7 Q6 A這條問題，貼落吹水版，名副其實2 Y8 ^. W9 @, k$ H. n

9 x6 Y  d+ |8 M5 O+ G[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]