| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎* P. f. d/ ^. a) J5 N! g

/ A7 X4 U# g! u- i; ~+ e' f(x - a) = x - a
; U, z# w) ]5 ]2 e3 r4 p$ O3 _(x - a) (x - b) = x^2 – ax – bx + ab8 N" Y/ j% M/ |  @: K6 E% e  J
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
3 r$ e& T# g8 [# `1 O(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 h7 M) Z  O/ f4 L3 Q
如此種推，3 i9 ]4 t3 W1 h
(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:
, M( w9 a0 }& `8 s(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:
! H6 I* A# g7 _$ N* N& n3 ?, W咁難既=.="  y; S0 K, F& I5 a& ^; b! d8 p* N3 @
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

; n% z7 p6 ~# H2 L

2 {* W# ?) ^1 ]Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
( O( i  t( j* ~9 N/ X, t1 j第一個答中有獎" w; p' R9 p+ n0 T8 l. h

8 @7 |4 b8 s6 T* z1 ?(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:' A* i3 l  M2 M2 W! {) v5 L
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  U+ ^/ U# x" b. m(x-x)= 0 ，所以答案係0，is it?

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) b1 C* S( Y* f! K唔似a.math題
6 P5 {4 ]9 Q5 y! d& w似IQ題=.=
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5 c) a8 a' Z& ]2 ]) z" e7 l[ 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:
2 d  l  R7 @$ k
& o4 T/ x% s/ Y! p) o* P7 f
& n' z# V- @$ r2 L  d(x-x)= 0 ，所以答案係0，is it?

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- k* h$ ?6 f. I$ iBingo~

waikong

我係學校個學生會單張見過7 U& ?1 t, @& E# V) k
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.........6 {; A6 A0 F2 ?

- t+ C3 I0 `9 @6 g4 |0 z9 I這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]