| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎1 Q2 }2 [" d0 K1 w7 E' S" p+ f

, t) M* s, a; f: a$ r$ k(x - a) = x - a
7 b8 |2 T" {# B2 ~7 b* p# O(x - a) (x - b) = x^2 – ax – bx + ab5 Q; g& R* ?" Q. W  E/ Z! z
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
+ ^8 \$ {! I; L7 J, n( i, e(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd5 H$ g& p& }" d9 D1 i
如此種推，
2 I- K+ P; F( k' e) [(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
1 p; c  i' b- T. ^7 y6 X6 r$ q. ]2 H; D0 A! Z
[ 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
1 B: `% j& ^/ {: z

Originally posted by Triangel at 2007-4-18 01:26 PM:! b3 @# Q* C- R4 P
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc( ~* [/ f. w3 d- a9 x3 M
; C* Q% f% h1 ^% h" v: b

9 v+ x1 G- a2 }& G# {% G6 C' O8 b
/ v& I, G* E+ r8 a
[ 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:
/ [$ W; P. }$ O* O咁難既=.="3 @5 F2 p1 O4 e) k# D. a7 }
5 ^# J$ W1 e/ @4 Z. ?, @
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

  Y; }  ?2 |8 }
3 k5 D: ^$ `: S4 c7 V9 K
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:3 n; s: b& [1 h' `" C) t5 K6 I
第一個答中有獎
) W' V4 F- F0 ~* ~, W2 Z. L4 t* |; `2 I
(x - ...

7 w4 G8 @+ t8 V4 n- }# M1 q( k
5 D' A7 S: _/ X! e* m# H' }. ~2 l' 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:
2 \9 K5 W6 t1 y7 A+ V1 H( g4 Q7 H8 s3 u: ^. ]

0 F. h/ h% e& w: }0 i(x-x)= 0 ，所以答案係0，is it?

1 i, ]  N# a& `$ _* v: k6 p

1 Y6 t5 W: \* U9 H6 j0 B
8 }5 q- w" a8 M6 n' {! N$ u) J唔似a.math題
$ `1 `, ]* Y, v! P, B8 x似IQ題=.=* ], T! x& M3 r/ p" b0 [$ D

: M5 G3 ?! P0 z- C' w# e( a, y  O; [[ 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:+ I, \- f* y+ ?4 r

+ i; q0 m) k& R9 y- t/ v1 {, c8 F" e! U5 I5 x* K0 j, f
(x-x)= 0 ，所以答案係0，is it?

  u: }3 I# ]+ x3 R
1 w0 O( B3 s; D  i% }) y& W( E1 jBingo~

waikong

我係學校個學生會單張見過+ u* F% P( I$ f( s! f& m
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.........  B/ e2 t' x2 J. s* i
; x$ W% A' Q& m8 x4 Y8 Y+ @
這條問題，貼落吹水版，名副其實
9 S8 b5 G; r; ]1 u$ F* u6 D+ P1 S# v7 w$ ]
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]