| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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5 R2 ?! A; W/ n; J& N" c(x - a) = x - a
, b0 i$ n8 t8 h6 u2 g(x - a) (x - b) = x^2 – ax – bx + ab, V: x0 ~2 P) E! w. Y4 b% L8 M- q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
9 d- d* _: a6 [2 M5 s0 D5 [1 |(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
8 ?; i' `' i# m1 k9 T. c  O, C如此種推，
( r' R! ~" J; x(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' y. E, K; Y/ E* x# t
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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& m' J: ^' u, L  F6 e: C

Originally posted by Triangel at 2007-4-18 01:26 PM:* R7 @' ^! c; g0 @7 n7 s4 L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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: h, p' l7 e' q4 H" v[ 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:5 m& \$ b: T5 G3 V" D0 `
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

% W- H+ {( c7 Z3 K

0 v' U+ w- K1 W6 l+ p& OThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:5 q: a7 {- e0 v
第一個答中有獎
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+ Z8 w" `' c" O, @$ b0 Q: C" }4 T(x - ...

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2 u, q( _' F% J2 Q& q/ u- ~(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:8 s9 W; @6 K, ^
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2 r5 }' ?  D5 R(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
  ^; Z' P5 P$ I$ j2 i似IQ題=.=1 u# L$ x4 `3 `- Q' e) N

  G1 x& E8 ~" I% E0 G1 T/ l[ 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 Q: d1 o/ e  v& p

1 o; @9 W' u1 Q: k4 `
- j6 y/ {) S; j7 o' k- V(x-x)= 0 ，所以答案係0，is it?

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& f" M4 f9 y; w! U* F8 i2 WBingo~

waikong

我係學校個學生會單張見過
, d* m( h0 p0 o1 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.........& @+ j. l+ M1 @" V9 O

: p1 b7 u0 P5 b5 d5 w+ I這條問題，貼落吹水版，名副其實( ~! Q  m- |) e/ f1 F' m# c9 p

* E( Y) Z& _8 L( }# ^" q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]