| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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: A; s) P! T# A9 h  Y7 F(x - a) = x - a) }2 {  i+ s; r" D
(x - a) (x - b) = x^2 – ax – bx + ab
' r: F9 G& B* C1 }7 b* M$ ?. u7 d(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
  B3 U& F9 h# h' q" ~/ Q0 H7 q, X. S(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( w# W6 b' ^1 E6 m6 d" `! ^* \如此種推，
3 w# I9 d1 C8 H7 f# k" |(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???4 `- h7 n" c5 M/ }5 P2 {! x
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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:
! H; D, x) C( L+ Y$ u(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ j# ]+ I3 M8 l, O
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2 H8 E" k9 N4 l( @1 B# 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:: b: D5 |1 }: u1 k* I3 S
咁難既=.="3 z& z7 W3 t$ ?! v0 W1 z% n

. X1 X* T/ c  B[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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( V3 G% ?5 h" G( C. x* o# L* NThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
0 ]) Y7 w( U" x  U第一個答中有獎3 Z2 a# y$ O1 I; A

2 v+ j0 `8 e8 x; \' x(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:0 M% {. E) }: R- U0 v9 R# K

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- O, B9 f7 g3 p(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
* ?- Y8 p" ?1 F, B/ Q5 l似IQ題=.=( U' M7 o7 w; k; I; C
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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:$ |' \5 k4 [) I: l7 n

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(x-x)= 0 ，所以答案係0，is it?

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8 q- O) b8 W: z+ O- }Bingo~

waikong

我係學校個學生會單張見過/ ^( m- l, H7 R" [" t
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.........7 ^- ]0 i. x$ m& H; `( H9 g: I1 G, ~
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這條問題，貼落吹水版，名副其實
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% k' F# j) Q$ b8 r! n+ f! q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]