| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎* M# t1 r5 \4 x+ o

) j( h* {, w5 ?(x - a) = x - a
# T6 M! `  S* m# n" g. e9 ]& W(x - a) (x - b) = x^2 – ax – bx + ab0 u# n7 ^! V) n: R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc# r2 D1 \* K' n, o+ B% [
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
& p5 B: F3 ^, T& W2 E7 V9 N& z! ^如此種推，! o  E: V- ^2 E4 z1 Y$ j$ Z/ f
(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! P8 P9 L) k* o+ c' R' P

Originally posted by Triangel at 2007-4-18 01:26 PM:6 v# s" v  a# Z3 k0 ]
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc5 V& w! k9 p6 L, t( ~. O6 W

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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:; ~9 h0 L/ d" v9 U! {* X! X% A3 y
咁難既=.="
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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:
( P4 D2 C8 J  e1 w# }; t第一個答中有獎, E( Y% Z8 m4 L: _
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(x - ...

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, {0 ~+ ^: h+ z1 W5 k8 n(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 x) }. g' S- k- N6 a( P0 ]  F
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(x-x)= 0 ，所以答案係0，is it?

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( o$ }( @' w5 }* H- o8 ?% w唔似a.math題" R% j" u' G; F% U
似IQ題=.=- K0 o8 q2 ~; M) o

1 W/ j7 M6 L( G& G6 k[ 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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1 `$ l4 |+ c: l* s4 ](x-x)= 0 ，所以答案係0，is it?

2 {, x7 {0 L" {2 x

; k. P6 q6 U0 O& X. c1 U6 K. N* ABingo~

waikong

我係學校個學生會單張見過
1 v1 z+ N* h- N! w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.........1 A4 Z; _- n# G. _* d
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這條問題，貼落吹水版，名副其實1 g- d: t* K3 U

- A/ I- O/ O6 p[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]