| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
5 |! B; m0 g& A7 j(x - a) (x - b) = x^2 – ax – bx + ab5 O7 `1 c0 J& ^/ N$ b2 |. J
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
0 i/ d( I3 K4 w, u(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
5 W, p, l4 l! a如此種推，
& T9 U! h2 q- ](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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:
- `; j9 W! r/ F! u0 ~# u8 r(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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  m  L+ Q6 ~% W" @1 B' S& w  Z[ 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:* m) j! _6 k9 o4 f" K# ?' C  Q
咁難既=.="7 ]! t/ j6 m" D, T. @+ Q

7 d3 `% {' y+ l4 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:7 g3 f9 R" q% ]
第一個答中有獎
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% l! m3 s; m6 l7 R" g9 s( i6 @8 C(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 q1 x6 t7 ~0 ^0 h
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(x-x)= 0 ，所以答案係0，is it?

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; D6 ]/ ~# o* E5 u  R唔似a.math題& `$ r# A* u6 j: G! \
似IQ題=.=
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' ]' C7 F* A8 Q$ v, z; b9 f[ 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:& l) z( e' }6 y0 N/ d
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* t4 e) V( Q/ t- Z! X3 j: Q(x-x)= 0 ，所以答案係0，is it?

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3 g7 f: l# B: h7 q: l) cBingo~

waikong

我係學校個學生會單張見過  ~1 Q7 }/ B/ p. }* 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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7 j0 }- n3 E6 D這條問題，貼落吹水版，名副其實) B0 `- v! b& W' y

1 O& w1 O, e4 b* g[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]