| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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0 }1 }; p% }; \1 l: |$ d7 E* Z(x - a) = x - a
7 t( m4 T% B) `9 P6 z(x - a) (x - b) = x^2 – ax – bx + ab# ?! f( o) d9 C5 Z
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc# N+ ?* |, u' t0 r
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd- {6 V( ^; N, ~) U/ A
如此種推，3 K4 r- ~8 e4 T4 G/ X
(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:6 g+ N1 T# q6 _! [, I8 ]5 |2 Y
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, L1 v* R4 {* S

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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:
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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:
/ U9 C+ F3 \  l: E1 K$ w7 R  H+ `第一個答中有獎
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(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:3 y) G9 L& [$ V
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6 Y  Q" X; R7 \2 ^: G4 I(x-x)= 0 ，所以答案係0，is it?

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$ r0 r. D' M' b+ i: r! D- H: {唔似a.math題
( R' q. Z5 v9 j* s4 |似IQ題=.=
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$ w# D  |$ W% g- J$ X& H0 d* b[ 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:) i0 s! X# z# U4 x
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$ \+ `* l: v  Y/ v) L. t& ?(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
4 z$ n' P9 p8 Q7 {( o( N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.........$ @0 J* y1 [- Y/ I5 [
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這條問題，貼落吹水版，名副其實! C& B4 k2 @5 b2 C8 g/ `

) m( k8 F" |9 S* c- `7 j" c[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]