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Triangel

第一個答中有獎+ X4 W3 H& Q( H. ?
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(x - a) = x - a
$ _  q% F3 |: Z: v& K(x - a) (x - b) = x^2 – ax – bx + ab
! ?: o1 t' }) @1 `. Y) J+ B9 p(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 K6 o- v% a$ J0 r7 h4 i. ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
5 ?9 E" M7 y; _如此種推，/ f) H  N/ a& `3 i- O( W* N" K
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???" y8 a0 j) |: y. w

! z& G$ d" x. _- Y8 [[ 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& G. P4 ^  @3 w0 L

Originally posted by Triangel at 2007-4-18 01:26 PM:! e; s. K. D0 P' ]) ]+ W$ Z
(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:
+ N; e3 D& v# L( C' c咁難既=.="% n/ I$ q, Z9 i2 e2 V
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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:" h* \- ?3 P# c9 J9 U- N% u
第一個答中有獎6 ^8 O. R$ Q* a1 m$ O, E
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(x - ...

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# p" n+ ]! o9 }& I$ E% b2 {; [(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題1 @' C9 Y! I9 H0 g+ \: i
似IQ題=.=
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: z7 y: Q0 g$ u% n[ 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:
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(x-x)= 0 ，所以答案係0，is it?

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# B* ~5 Z) z  ?$ ?4 X/ SBingo~

waikong

我係學校個學生會單張見過( @" L( z: s7 g. j7 e
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.........% X7 L+ s5 a6 E- G, _/ f
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這條問題，貼落吹水版，名副其實" J3 j$ {6 R7 v; A

2 [5 s, h6 j. m0 ^! Y[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]