| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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% F$ n, K7 p! U# O( i(x - a) = x - a, a  D/ B  m, h' E
(x - a) (x - b) = x^2 – ax – bx + ab
5 B# v. f# ^) D. {$ t  E* K(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% \; o7 k8 S0 y  @
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd0 C# j- z6 Q" |( l+ Q& X4 _  q
如此種推，& Y- O: ^9 F" j
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ z6 {. c1 L7 I  Z

: N, G, ~- u1 Q. ~0 k3 y[ 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& Z% n6 ~3 V3 e. p( m

Originally posted by Triangel at 2007-4-18 01:26 PM:9 S2 S8 |9 y7 b+ K" ?
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc) T$ T) q0 I3 T
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) x8 o8 f, V5 H  ?" M[ 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:
5 ~2 p* h( C4 O( n咁難既=.="# j: e; V0 x* |& ^' ]0 x! F2 Y

% V7 J$ O/ e/ R. D[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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4 I& q+ c( ^% `& V& gThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:$ G3 R6 C8 ~, e! w  r! B, l0 S
第一個答中有獎
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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:1 Z/ H: h$ r" @& B
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5 N" d6 b0 p2 Q8 z( d; J8 n& K(x-x)= 0 ，所以答案係0，is it?

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9 Z! ~9 z- t6 \5 c. l9 ]唔似a.math題
' Z4 e9 d# Q, }- ]似IQ題=.=
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1 R1 e" v9 R; R5 V! n3 b" W+ j[ 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:5 y* W7 \) Q# O4 F: L% i

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& o) o+ T1 u( S0 p2 u(x-x)= 0 ，所以答案係0，is it?

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* N0 w% f9 G$ UBingo~

waikong

我係學校個學生會單張見過
( A( h; Z! y6 @; i6 b' r' M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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2 F0 L' |2 `! w2 i% b" n6 ?# x" t9 ?( L這條問題，貼落吹水版，名副其實
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0 [! Q2 g0 ^* J( b[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]