| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a: P7 C) j5 D: v& R* p
(x - a) (x - b) = x^2 – ax – bx + ab
: u% P5 r5 Z0 p8 W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 x& T5 p! h' y& C& Y8 b8 q: _
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
# i7 L8 H, ^1 `% ?如此種推，
$ X" @+ Q/ ]' a2 E  h(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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:/ B. S6 A: V- K9 A& T; z. @3 Z. @
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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- m# C8 ?4 J* f8 Q[ 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:) W; ~1 p) B4 h2 P+ q* z4 O) W
咁難既=.="1 n0 J5 [2 X/ Y+ o5 ?7 @
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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:0 G  e* H& {3 n
第一個答中有獎
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(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:! {- ]1 m6 i6 Z: M1 ^( D5 ]

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(x-x)= 0 ，所以答案係0，is it?

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5 b$ E% ?3 w" I4 ?- f+ Z唔似a.math題
# S8 Q3 g: C+ y3 l+ i) Z$ U$ |似IQ題=.=
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* ^( ?( X5 ^0 j: C, d4 ~6 f* f, Q6 y6 E[ 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:; f! F; i( x) h* {9 {( d
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(x-x)= 0 ，所以答案係0，is it?

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. J$ b- _( Y6 J: I8 g( _Bingo~

waikong

我係學校個學生會單張見過
' t* P/ R+ x' L6 l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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3 o) C0 C- R4 w. p$ X& Z9 G這條問題，貼落吹水版，名副其實: ?5 E% |: C" `% I9 Q* [7 n1 Y: [% E
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]