| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
8 O; A6 k. Z; K! |8 [3 r% A( G, R(x - a) (x - b) = x^2 – ax – bx + ab
$ d& i( X5 t( y* Z4 r. n(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, Z" e( R2 ~% K! p9 t
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
; V# q4 p' e4 J' p& D如此種推，# c1 o! B3 @1 H* B- _- i
(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:( s4 c6 r, S6 Y/ y
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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6 D8 h, \2 |3 _3 d% y" 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:& w) r. O5 C  m' E
咁難既=.="
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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:
' d) i& h( g1 y4 O' T% K第一個答中有獎* J7 g+ b% y  O; Z$ g% p: W
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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:8 C) M- X0 ?- m+ `

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(x-x)= 0 ，所以答案係0，is it?

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" a- x' E6 ~( d2 _' y- X. ^唔似a.math題6 f5 n0 M1 o0 u4 L) X  N, h- X
似IQ題=.=
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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:3 w7 w( c7 D! a  Y  |" M! _

$ \6 P' G5 x/ P" X  x
: @5 v+ Z: E' i  G(x-x)= 0 ，所以答案係0，is it?

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$ z. T) I( S! [! s) I; JBingo~

waikong

我係學校個學生會單張見過6 p- H& J3 `$ c7 d/ 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.........0 B, Y. ^8 T$ C2 o

$ Z& |: h, Z6 O+ T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 ]