| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. w0 V' C, A  I5 n4 _  Y
. G/ L$ x6 L( c% @/ x9 Y
(x - a) = x - a
  I, S2 t+ T* }( \0 g(x - a) (x - b) = x^2 – ax – bx + ab* S$ w  P8 G1 J5 m9 W
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc5 Y4 Y! `& ~0 Z8 }# L$ e" H8 B  N
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& `% M$ G; l5 T: W. y+ J' {4 w
如此種推，
* U3 j" P) L( r) B' ?& v(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
9 D7 ^2 i- E  i' i" c5 O, K
# X9 D+ v6 ]# L( q0 ]$ b" G' j" _[ 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
2 I9 a) K# K' ~; B3 b+ g2 E: L

Originally posted by Triangel at 2007-4-18 01:26 PM:. b/ ?. _2 @) C$ q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
/ c& m* f+ e5 [
( V* c& c: T2 c1 a

) ~* C/ b# L3 U4 ?; [1 E
3 ^' t  ]) Y7 P% I) ~. U3 l[ 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:
; Z; W0 i. R1 o咁難既=.="3 o+ S+ k- E+ R

; S8 T3 h6 \* i  P[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

1 u; m* @7 u* t1 o6 E) `+ q
2 i& b! N7 u. {4 _0 a4 uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:- e& ]" l9 K, J9 b& W8 ?" S
第一個答中有獎1 s; B; @; n! N; t4 \
# v3 w" s( ^, u) n
(x - ...

5 d/ L8 N# ^7 S4 Z+ z; |+ o  L+ Y

/ d  ^2 H3 P) q) y8 r$ Z, i( q! x(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:: T& i* u8 b4 ]: f

& I3 @" ?$ D1 Z- o/ j# A* t' s
5 L3 _( a' q; x: s- q(x-x)= 0 ，所以答案係0，is it?

3 d( ~1 t. {$ j! \' G" `
; Z. [; F0 x' `0 V/ @8 z6 C6 `: O
; R2 B2 h/ z/ ?8 ]4 q
唔似a.math題
3 p# A  R2 f$ z- m/ y- N! Y, F/ m似IQ題=.=% n4 e/ `0 f  O& ?# [
0 P; o/ b: D+ a# b0 a2 a5 ~
[ 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:
2 ?8 ~; b3 D4 p- l% C0 i1 z8 _- e) G" o/ P( Q  \1 _
, H& P. I+ k1 b/ W
(x-x)= 0 ，所以答案係0，is it?

* }: g: D1 _1 u- O' Y* I/ y3 y( s( d# k2 {: ]5 u
Bingo~

waikong

我係學校個學生會單張見過& c8 x% s' N6 a- T& i6 z- Q* 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.........
: N: o! E# {3 J% m; [4 z6 H; i5 D' \$ U
這條問題，貼落吹水版，名副其實
" u4 ~! Z' n! M: O+ V7 L2 Q- Q3 [
( g  |9 V# m2 y6 R0 [4 Y  o  l) ][ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]