| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) E" U6 ], O7 X4 Z. P

8 m2 G4 l7 U" ~3 h2 a# {+ `9 I1 E(x - a) = x - a; E% n5 _( k% N+ R% `0 M$ W
(x - a) (x - b) = x^2 – ax – bx + ab- @2 h" ~0 m- \; R2 C" U+ I- @+ I
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc" p, q5 c7 N2 p4 r; g
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
" g: l/ J  c0 _9 I8 J如此種推，
3 K: F- n/ m9 |9 s8 u$ ](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 b7 h( e0 Z1 \2 h6 e1 x; v2 l
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
- B7 P" z6 M- s+ G" V3 k1 u- Y! U(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc$ H5 F: t% V' S$ J0 {
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[ 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 o  ]: `: S  n咁難既=.="
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& m# V8 x9 Q" \  [4 s" L( z, g% R[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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7 R4 V4 A9 J1 v% i# {& MThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
, K8 Q3 I9 l, Z1 N第一個答中有獎1 w9 s; g( W/ j: q

/ ^! L1 v, g* m% [4 ^(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:: U1 I- c! E: [

; `  m! b2 T: l0 U' ^; ?1 M: P  B; r2 b! ?% w3 L: M! d# A* y
(x-x)= 0 ，所以答案係0，is it?

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9 e- K3 R7 ~4 y! H6 u6 z! c* d% h0 T( h
唔似a.math題
2 H; d; U( q$ }- V# m似IQ題=.=  H4 ?& Q% C2 _" L0 q  r5 _6 K
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[ 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:) N$ t. O8 f  b5 }8 t  ~! I8 @' P
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: W3 Z- a9 t0 G( }  W( M0 n(x-x)= 0 ，所以答案係0，is it?

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$ `5 X. |: j: b. CBingo~

waikong

我係學校個學生會單張見過
; j' x$ J0 U, I/ z4 Z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.........% B9 I4 G' \6 N/ T

" T9 p  r) ]: f( c這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]