| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
6 g2 Q: O, g/ G9 g' N1 u
9 ^" c, R; I0 G& m& D: n+ p0 M(x - a) = x - a5 Z& g. u4 j, U+ w
(x - a) (x - b) = x^2 – ax – bx + ab; _1 D! w1 g4 D) r8 T; _& T
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 y6 W2 k! ]; ]( ]* x(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. K9 w! R5 X$ \5 M6 z5 o7 W% u  u如此種推，8 o) O0 H( x5 K3 Y4 @
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- [4 {; [- \, d7 t. w6 I* A+ v8 K

' I/ a1 @8 i) Y, u[ 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
+ f3 v0 A5 i0 z, x3 k

Originally posted by Triangel at 2007-4-18 01:26 PM:
, s1 k! T; i, B& Z+ g(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
; }/ J& t% u8 z% z: W! Q9 B
& j' w) B3 Y- |& E

5 m7 G% j5 f/ v! g" u
* Q9 w' i6 [+ ?6 j+ G
[ 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:7 l& c: |4 b% A( O! b0 f- Z2 [. I
咁難既=.="
- e; z1 [9 l* e. C9 I4 O7 k3 L6 d
8 S* D7 t6 x7 _, R" ~( g[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

& O& |( N7 g" Z6 S% P+ D. s" H7 _
7 Q. Q/ S& N  d" n. D% ^Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:# c" |3 G1 b% ?3 T5 h* p- ]
第一個答中有獎
/ i8 `1 l! ^5 ~9 v. d4 A! A/ G  W6 {+ K( k% c
(x - ...

( n/ @, X. M$ a7 n8 K$ u9 N- _8 x

- w* l4 Y0 X  C8 ?5 ~(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:" b+ Q9 G( e9 _+ w

6 @% a: |& c9 p9 B( [: u% W# F& v2 N0 R  V  }( j+ Y
(x-x)= 0 ，所以答案係0，is it?

" l, z0 x0 c- Y. q' O4 @2 f$ u

* X) j0 z+ o. Q: ^3 g# V$ L) K9 a) E0 J: l
唔似a.math題/ H6 ]- A* P) j
似IQ題=.=8 E5 ]7 i4 H. r0 T6 R; u' s
: w3 N( w) X! A) U
[ 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:* F0 v% E7 f6 T% y! v( [2 Q! X
; {) I. C% s1 s# @+ r
* w" r4 A; f6 D: p5 p* S8 C
(x-x)= 0 ，所以答案係0，is it?

- G1 o9 }' D& T
3 N. c& Z* i& `- P0 wBingo~

waikong

我係學校個學生會單張見過" V5 ^4 w/ {) S1 M  i. P! B7 C
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.........$ u, R% d, p, y* C

% f. J5 o1 j3 X; b4 ^這條問題，貼落吹水版，名副其實, E/ c: E5 s, [3 j8 E/ P
# I5 \" I# |8 a* S, O+ i3 i% F
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]