| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎( S# \5 N4 V3 `; y2 |

0 m) |3 {2 ]/ h8 Y- }! E2 H(x - a) = x - a# i2 y" e3 n8 w, R
(x - a) (x - b) = x^2 – ax – bx + ab
; S( K0 K6 T/ |; j; q8 r% R0 u& O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 `9 C: w. e# L; [2 J0 x, ~- f
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
& t$ j! ~, x- K2 u/ e& ?如此種推，" B2 g! n: L8 a  Q) u) |7 B# j
(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/ R" F0 s3 H/ `

Originally posted by Triangel at 2007-4-18 01:26 PM:. Z! K0 H$ L0 l* k5 j$ P
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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& a) g1 [: ?0 K[ 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:1 H1 A$ H4 o8 J2 a
咁難既=.="3 b6 S/ ?( |5 r( T" t
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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$ w7 k  u! h$ E4 _/ k: e& rThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:/ v) U. g2 c; P
第一個答中有獎9 H5 L4 D; o/ T2 C# W' u
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(x - ...

4 g" z) W  r: l9 }$ {' `* x' x' a0 S
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:# q1 s# ^/ o2 y$ r

8 W3 s" f  g5 P1 I5 f4 l# X! K, c
5 |  h: J" v- _$ @+ u(x-x)= 0 ，所以答案係0，is it?

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* ]' R, X  e% z5 V* F唔似a.math題* W# e' t. i: z, @0 q% P
似IQ題=.=
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+ j2 `9 s. f% m[ 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:/ f& D2 y  R4 c! @) A+ s% h

5 B) v0 u; J5 }) t: A3 T, n7 ^9 r7 f$ Q" J9 `1 S
(x-x)= 0 ，所以答案係0，is it?

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) A; b1 u' p0 rBingo~

waikong

我係學校個學生會單張見過. u1 O) k( j# T# W% s2 g
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.........* t) a: c5 q2 D! m% }

; k5 @5 E1 S4 f9 o這條問題，貼落吹水版，名副其實" _& Y$ w0 Z# @! F$ t) ?1 n! T

0 f1 P! O  j# t; l; k[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]