| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) q! j  E/ _9 y: Z* F8 i- ~/ k
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(x - a) = x - a- s2 i1 a2 i$ v
(x - a) (x - b) = x^2 – ax – bx + ab9 y: y" R8 I7 k& G
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
/ }2 ]  ?# d$ x6 ?; K5 B(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd, y/ I- T9 q2 S. E
如此種推，  A7 d, N% H# t( t* J3 \7 g
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???( ^* [5 U1 A. U& c# P+ D" N% Z! d

' l+ H, S; Q4 E8 v[ 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! J0 G+ ?" i' D7 L% S( B  i

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 q6 f6 e+ a5 E0 y# L6 k2 t(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# i  N) j# G3 e) O/ n

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+ b8 y& ]7 a1 Z8 n[ 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:
+ N8 `% R8 L& M, t咁難既=.=") d# l" A, t! M) O, E

( c% x) R1 w5 v, y0 p) p: ^[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:  _7 Q2 x: E! t& F" \8 s) c& g$ V
第一個答中有獎
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- Y; P) Q1 W5 I4 |(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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
8 @. R5 f. N0 K似IQ題=.=+ Z9 K. T- \( D- m/ j
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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:
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# w* B' q, `4 ?) L" |0 [3 G- `* T+ A: F& D5 L
(x-x)= 0 ，所以答案係0，is it?

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# P6 _2 M2 ^7 [7 h& xBingo~

waikong

我係學校個學生會單張見過
2 L6 b+ @, l! k$ w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.........
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; R3 k! I# \; a. i7 c這條問題，貼落吹水版，名副其實/ L5 U2 |+ q5 d- |2 o6 t
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]