| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
0 O/ V0 S4 j5 `0 t+ ~0 M/ O  m) ~- M& ^" B
(x - a) = x - a! I9 g0 Y3 J2 A( x# Z* _
(x - a) (x - b) = x^2 – ax – bx + ab
) y) C0 {, [6 e( s8 _(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; e9 U. J$ R4 w! I# _% h" l' l  b* g% F7 y(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
, w! g/ b2 Q7 l9 V$ u  p- Q7 |如此種推，3 H3 K$ j' k! p( V! N9 x+ Z
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 [1 x$ o- t/ G' P$ w
( j# o+ [: \7 x/ |: I4 d
[ 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, q/ ]6 ^- {+ S( |! t, X

Originally posted by Triangel at 2007-4-18 01:26 PM:
% s  R- y' Z9 [: a- Q) p$ b7 ]& B(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
) M# }' P2 D  w1 D) I% j# u$ {: C* H: h5 F6 u9 L% y

) F" C1 l% l+ k  q

5 ?0 q" U% x2 d& O; y* U8 t! g" T[ 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:
# L; m6 E/ j" t, d4 }. p) t* x咁難既=.="
" k0 Y' D9 S' a7 l; n6 ?2 r4 e' V4 D' f
2 \: V+ \* n6 G1 D. r, g% {[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

& s  T( J; h  U

9 G# t) b6 s4 L6 Z* Y$ |Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 v4 K' K7 p8 v4 B& g第一個答中有獎0 R' I$ b  G  r4 ~: K- y

, o$ {- q" T4 t0 g- ](x - ...

3 h1 J, _" |: {- i/ \9 W
# V, a3 k8 r6 d8 u+ T
(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 a2 N  k2 d# P1 M. A

( d# }5 H$ R# e& M
+ d9 g+ |7 p2 A7 i(x-x)= 0 ，所以答案係0，is it?

# ]9 w  Q/ z. T# ]
' k( l: k# _3 M5 C- j% T% X% K# @: ?' i. T; @
唔似a.math題
3 ?% {8 X6 i* n' W似IQ題=.=
3 k* J' g. `* Q3 ^0 Q$ p
) ]% Y6 O+ g& z[ 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:
9 ^& A7 w9 J% H% C9 K$ T' S/ c, e0 i) U; P% A& h5 T

$ |* |) q- E+ G! R8 p! ^(x-x)= 0 ，所以答案係0，is it?

1 K1 B% q! p8 ^) R1 C0 {0 W$ T1 P& ?- O) f' |
Bingo~

waikong

我係學校個學生會單張見過
' ]& q- y- d3 q' a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........., o4 V+ q* D4 P- l! X
- J& _+ M! l6 C. P
這條問題，貼落吹水版，名副其實
3 s9 s  J+ F* W7 v# k: P* u+ K7 j2 ~! V/ C9 Q2 a9 w
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]