| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a' i( Z/ l2 T' F. ]5 r
(x - a) (x - b) = x^2 – ax – bx + ab5 A/ G  u' {% M9 n# W
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
4 ?# X. R/ k, T+ W(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
9 n% Z% h0 j$ w5 ]! d0 Z如此種推，
0 p* f% W- u# [* W9 S(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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1 F: y' `; C; v[ 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
9 f" e0 G+ r( ?3 [, x% x# S% b

Originally posted by Triangel at 2007-4-18 01:26 PM:
1 w% r$ m3 B7 A: y0 P8 j(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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3 l4 k0 r+ C% B6 z7 ?4 C' ?- {1 `[ 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:
3 s3 A8 L' t& z7 H2 {! d1 m咁難既=.="* X7 [: K& q! Z8 `. G, K
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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( z+ O) x8 d* s. [Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, p) B: y- l# X5 f  a  a
第一個答中有獎
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) @5 t/ h3 m' W(x - ...

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6 k+ m2 m  T" K* n8 M( b8 J, i(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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( _9 \( ]; h3 S; ]) ^  _2 C% a唔似a.math題
, a1 K, _0 l- `2 t  P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:6 Z  ?4 B0 `! \

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(x-x)= 0 ，所以答案係0，is it?

" R3 U" N1 g( Y5 Y# t' H1 U

) M+ _( m" F$ eBingo~

waikong

我係學校個學生會單張見過
' f! ]  E7 _' D# _" r, 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.........
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: @# o$ e& p$ e& k' g& M$ d這條問題，貼落吹水版，名副其實
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( X6 q/ |0 s% W! u$ W[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]