| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& V: g: f  c% I
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(x - a) = x - a
' j) W: l7 {/ V7 x(x - a) (x - b) = x^2 – ax – bx + ab. M) Y1 Q) Z1 c8 E4 ?0 ~
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ |, P8 f. ~6 ~0 @$ ]5 \(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd3 y8 z  D# G( E% ]" _
如此種推，( V; Q  Y( v: w. {; X' |: x4 t
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' H, O2 U9 I: F; F6 {0 K

% Z8 N( |" ?( p/ j1 W3 P[ 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6 Z2 J. e( N$ h8 J# k: ]

Originally posted by Triangel at 2007-4-18 01:26 PM:2 Z3 c$ _5 ~9 ~. P; j, G; x
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc3 u4 A& d2 ~- I/ q

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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:
4 [& z( s9 _' M/ c3 Z3 o咁難既=.="/ B$ F  n. I9 D2 e
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[ 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:. I/ h! Z% i2 u. ]
第一個答中有獎
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! V. N0 K5 d& S1 ?1 x6 \(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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* ^0 x. ^- ^# F(x-x)= 0 ，所以答案係0，is it?

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# ]) }5 x+ C4 W, ]7 |
唔似a.math題
, E0 k- U0 i& n, K% `* T' |+ d+ O似IQ題=.=
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8 `- h( M; u. r* J: o" W[ 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:3 j& a( P! e' X2 N- |

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- W1 g9 T  ~" Q- q8 Y(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
4 l- j8 u3 I9 p# B6 c( ^; j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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0 P3 U6 P2 p' v, ^這條問題，貼落吹水版，名副其實
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$ ~3 Y6 `$ \( }4 P2 o" z, i[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]