| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) o9 z+ S7 p" M% x1 W

; K* D- g' ~( z1 G/ g9 g# e' J7 O(x - a) = x - a
, }, v1 t2 X9 b6 H2 v5 G(x - a) (x - b) = x^2 – ax – bx + ab
8 B4 l6 u# Q" n& n$ D, D% B(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: d3 t5 Y8 O4 P% K. M(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
  T/ J; I1 I; N" Q6 y! [. w如此種推，9 C. Q* m6 }1 y* G9 S& t! @
(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; B; W. }8 k, d3 e' d

Originally posted by Triangel at 2007-4-18 01:26 PM:: w4 B: x! h7 @( n( O
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc( t) g; l  S' t  t& @, Y) W. `; g

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' Z# {( W8 [( i2 n2 ?6 f[ 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:" _9 v# T! V! f. e1 X  B2 F7 Y$ a  q& A
咁難既=.="; k2 s/ Z6 j; y0 x9 p. u/ C1 e

; ], R: S2 H; m  H2 e; Y' r3 A[ 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:
* s. S5 t5 D5 o7 Q3 c0 o第一個答中有獎3 R" H) W4 z0 W' ^

% w8 F" p: i$ e9 _% F(x - ...

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, O$ x& s5 L+ a7 m: w# W(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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(x-x)= 0 ，所以答案係0，is it?

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  {& Y% J3 q& a0 a7 ~& k5 P; J唔似a.math題& h( c+ r( k; m8 C6 f5 m; g
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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( u( j1 L+ ]1 l, w+ O6 h/ Q( m# i/ T/ l! v  a6 o1 I
(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過8 b$ w/ h  N0 N# ?$ |
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.........8 \& O- O( z9 w2 n. B

' w9 E  G4 l4 z5 P& u0 D" Q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 ]