| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
! Z2 s0 m2 _' P$ S, G5 u) O4 l; z(x - a) (x - b) = x^2 – ax – bx + ab
' k# Z0 k- H: B% Y. X' S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; \3 z8 Z) W; P. \5 N( h7 {# ]/ X(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* S$ l3 \1 D9 z& ?$ O5 V如此種推，$ _# J0 A6 y$ N& y) h5 }
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???2 z2 p6 B1 L5 G! V4 ]( d6 a, O
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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
7 @$ W, z; _0 K

Originally posted by Triangel at 2007-4-18 01:26 PM:
8 p- Y% W7 M) t: V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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2 w( [" k  F% |[ 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:
, ^) L- a- n/ L咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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2 g# ^2 y& ?2 [) s2 P! vThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:4 N6 [/ P& ]! `3 v* ?3 q
第一個答中有獎
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(x - ...

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& ]* l+ x0 V% j3 }% K(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:" Z1 o6 n# H1 g0 h# ?8 [
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5 L! h" H2 D+ x* H7 |$ o! |3 B: L(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
8 @, y8 w2 `6 d$ J+ \8 \9 A. X8 P2 y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:8 u2 P# X) B7 M  t# O, R% Y
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1 g4 ~6 X. W0 p
(x-x)= 0 ，所以答案係0，is it?

( a) Q3 }% \" U4 Z& ?

, c; ]& L% r1 u% P3 L+ IBingo~

waikong

我係學校個學生會單張見過3 C8 ~/ y: |! 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.........: `* M8 E5 t7 L/ ?

# E- ^9 e' e5 T( g4 R0 _這條問題，貼落吹水版，名副其實
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; C2 b0 v* j- o* e[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]