| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a' {9 Y, w* C7 @% j! R7 d9 s
(x - a) (x - b) = x^2 – ax – bx + ab% a5 _/ {& C! |6 }2 r8 e
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc) `" r% d$ X+ E3 r4 G9 P* V/ e( m" o
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( o6 ~6 P$ ]! i如此種推，
1 D  I' U' C* B( E(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???1 {: V# ^6 [2 f) O* C6 }

& ~4 w  }+ N# Y% I& F6 k% _[ 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:
6 I4 M4 C2 Y' J7 M1 x( {/ _5 K(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# J# b$ w+ b0 b) |

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" Y7 n8 ]2 G% \1 L. W[ 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:
0 N2 }$ ]; R1 h/ C# U. Q. ]5 ^  m咁難既=.="
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8 \7 l; f% N* e" i- L[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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! V" `! o1 h* [/ V) V2 O  s0 g# wThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:1 s/ D9 `! e  x; e* F
第一個答中有獎3 r- |  g2 x( G9 z

1 R7 w) z$ @' D1 O4 J3 D- ~9 n(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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(x-x)= 0 ，所以答案係0，is it?

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1 p2 M5 P) N  \, I0 b& c1 V( f! ?) o9 p" I  E/ W, l
唔似a.math題% C; Z  L" F8 |7 Z8 z8 a* f
似IQ題=.=
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+ W' c% V* N& x9 a; G[ 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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1 B0 x' O' {$ _(x-x)= 0 ，所以答案係0，is it?

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; @" c9 s% T+ J& K1 YBingo~

waikong

我係學校個學生會單張見過
6 q$ c  b1 i2 N3 L% 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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這條問題，貼落吹水版，名副其實- [+ N% K! W( `* i  y! m  g
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]