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Triangel

第一個答中有獎- n9 E/ j9 g5 S
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(x - a) = x - a1 e8 }2 `6 n& \, U: `" Y
(x - a) (x - b) = x^2 – ax – bx + ab' t( j* O% ^0 m- z
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
" P: ^7 N$ C- l6 s0 S(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! `; t, ^, @/ c- R; m6 O如此種推，& C1 A5 B  q2 S, v
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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2 Y3 `7 E# s; c5 \( {  H- V[ 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% \4 w0 c3 I5 H2 D

Originally posted by Triangel at 2007-4-18 01:26 PM:( A: N! S. w/ a# q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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% I2 h& \, Y$ G5 K$ k8 O5 S[ 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; u% p% F* m3 v% T
咁難既=.="
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& J7 m* ]* U! Q3 N/ U5 {5 K[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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( w( s; G( H9 H' X! eThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:3 y/ C, L8 \7 {2 b8 J1 {
第一個答中有獎& X; L& |! A- ^4 n

3 i5 c) s% j8 W8 h, y5 i/ {- L/ l(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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& O8 m& Y# {* u, H4 x; b8 W6 i(x-x)= 0 ，所以答案係0，is it?

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8 C# X+ e- u3 C7 O- H/ E7 c唔似a.math題1 F. V( Z, w( K4 [1 j( ]' _( ?) }
似IQ題=.=) G" i' H, }. J. f
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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:  K6 S4 W  L  t, U
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+ B# n- h: u% V: g/ k9 s(x-x)= 0 ，所以答案係0，is it?

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2 ?* [! Y+ j9 k5 ?6 H' d3 p1 {0 w% O9 VBingo~

waikong

我係學校個學生會單張見過
% ^/ q9 Y& I' P) P6 Q$ _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.........+ x) @3 Y+ ?2 d; N2 D
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這條問題，貼落吹水版，名副其實7 I% S/ H, m) D- m/ o" M+ B) w$ M
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]