| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎' Z0 E- q' m5 A) i: r2 v
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(x - a) = x - a  ?$ f) ~# s) \0 L2 p; o4 c6 j
(x - a) (x - b) = x^2 – ax – bx + ab1 T# J( z9 U( @/ v! c* _
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc+ G$ D) F& N3 O% f# r) E* w$ ^0 ?
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" L4 E8 A  `) R8 r
如此種推，
. f* e. G% o/ y) {5 {. D; B(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???2 o* h3 a- }. s  b. g+ q  ?
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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:
) Y0 Q- O( r1 ]7 y* d$ k2 `1 F8 B(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc6 z* R5 ^& V% K; ~) S

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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:3 w5 ]! b$ D% B
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:
& w  f5 N8 L2 @2 i0 a第一個答中有獎4 B( N# y- Z0 E6 D0 l* u

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; i$ z6 D9 ]1 N3 h# Z- S# G& M(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:# j% J& b; u1 U  j+ H0 p& E

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(x-x)= 0 ，所以答案係0，is it?

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* O% l* X  V. N* O7 `. S+ h唔似a.math題
; F! s; a' m/ H/ S) P% A/ Z: t& Z0 w$ n似IQ題=.=" ~, {% W. s( n6 }% 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:
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" G: A& X: X" o" U2 v1 z7 a(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過
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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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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 ]