| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a6 a) V/ Q! ]. U( n
(x - a) (x - b) = x^2 – ax – bx + ab" K0 w1 M( T3 L4 M+ o! B
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc; w$ \. J  M' ?0 W2 A  ?) p% ]
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd' _4 B8 }' Y8 R2 p) v" |& C% g; i
如此種推，
6 _  c# G$ |- }: n2 z5 q/ E(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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! K8 q- b! M* Z  t[ 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& y7 e  V! p! W+ ^8 ?  o

Originally posted by Triangel at 2007-4-18 01:26 PM:6 Z+ H* \# m7 E3 I+ W/ s) @6 ]* C+ w
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:
$ W- A3 `0 `7 s9 c" I2 e3 T/ e3 N咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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$ l. }* r2 Q$ p7 IThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:: u; O& Y5 b1 @; {- y# a# F
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:0 F3 D8 V) n  X, Y- s

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
2 I9 b1 z' O( K: [似IQ題=.=
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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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! Q' ?$ U) J6 F, y! V' ?& [8 L(x-x)= 0 ，所以答案係0，is it?

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0 r- x1 L  T' o/ J% y; y- ~9 e7 v. m: ZBingo~

waikong

我係學校個學生會單張見過, Y# O# L" S6 E( L
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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- Q* C; s: a! `. L; u+ m( D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 ]