| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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& e1 C- ~, U% [. R$ C+ W(x - a) = x - a# @( L# ~1 b3 f  q1 W4 w5 g/ l
(x - a) (x - b) = x^2 – ax – bx + ab1 e$ `  z- D% v3 P; P: L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# F  y& o0 T; S$ [3 C(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
9 U) }- z; c8 {如此種推，
. e8 P- N+ H; k* @(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???) d3 ?: G( E  p1 I: U

$ |$ J8 K. q1 t3 n[ 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:
8 m3 U/ U/ b1 X# T" _3 _. j5 ~+ N2 X(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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% p8 ^: y5 [4 s4 A1 e[ 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:
. O( P# U2 @% V: _" s咁難既=.="
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9 k8 u  K; q) E/ r) X! C( g) o[ 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:, k. @, l  g" l) _
第一個答中有獎
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4 r) f% d1 J0 w, P. i/ Z(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:" h# }( b0 B) x

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題5 u' i$ q$ K' m7 A& O) u/ }# I4 x8 m
似IQ題=.=. A" M6 ]% l+ O7 D. a

: P, \/ Q- L# _& D" X2 g) u9 y  ~[ 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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(x-x)= 0 ，所以答案係0，is it?

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) n4 {+ C2 s, j! R$ sBingo~

waikong

我係學校個學生會單張見過
! w$ t2 Q7 ~. O2 F' W% F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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; t/ B4 i/ J  |6 @- w: O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 ]