| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎4 E" i% |) a# h0 J) p% X! h

5 n! G! _* a/ P& w* u7 A(x - a) = x - a
! Z- a6 j  ?* ]: s! @(x - a) (x - b) = x^2 – ax – bx + ab$ b, U; L# r! O4 X1 N  }+ u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# Q6 z2 C+ |- ^! v; E/ W(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
# @4 Y  d$ n7 e" d" A8 i如此種推，/ L0 e; }9 f  w# |6 ?( G3 j
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???7 Z7 L  T8 O& @$ ^0 B
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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:
5 u# v, E- a* c! L(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc& ~# V) z; ~! v. ]3 J

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( `4 g2 q& x7 ~+ W) w* X+ e9 d[ 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:: Q; u% U+ S) f- F8 w% t( o1 L" _
咁難既=.="
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- G& H1 [! I" k7 V: k[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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# x7 g! Y3 l; a, U! OThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' P, W* x: L" r8 o: _第一個答中有獎' S3 I; e* Z" q0 [
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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:
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* q" H$ ^, R/ l8 D4 J(x-x)= 0 ，所以答案係0，is it?

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" \% q8 e) A7 R7 N/ J+ R7 h( r唔似a.math題
; f* v3 t7 t; u/ C/ ^9 r, E, f似IQ題=.=' j4 |/ J0 p% h. Z
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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:* C5 K' ~7 j& U/ ]+ \& T" w; e

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(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0 s) J4 g. _! L0 Q( a
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.........; b2 ?4 Z4 m# i% p
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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 ]