| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a3 S1 V" G+ `( O+ ^6 e- K
(x - a) (x - b) = x^2 – ax – bx + ab
0 e+ ?5 G, s( ^6 O# `$ n(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc! R$ l4 i8 g% |
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
  F4 n# S1 z( \: @5 j如此種推，
  s+ ~/ L$ U8 v, i. Y5 r+ Q& W(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ Y# i. Z+ {0 \& B$ ~2 W* x7 P+ w

8 I% I' d9 X1 c: E[ 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  S2 A; m  Q  k8 M* K

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ V* v4 c! J4 p(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc8 x5 y+ o. @8 \

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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:" R* M1 K4 E# C: b6 J& a+ ?* x
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:5 s5 S0 l/ ~4 P: i4 q; z
第一個答中有獎0 ^7 _0 H$ Z4 ]

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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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題2 N0 {6 C  `" _3 g- Q5 T: b4 L" {0 x
似IQ題=.=
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( N' |4 x2 A% k0 A; |/ g[ 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:0 |/ @6 m! ]5 M1 S! c

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(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
2 K: n: X" S+ B% N* U# }) `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.........5 q0 U0 }  C. p) |! S

! S2 c( F0 w, H" Z& o這條問題，貼落吹水版，名副其實
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. A/ }, X! f# y' B9 Q" `) y[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]