| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎6 H6 u) l  G; }5 |7 ?$ a

/ @+ e# D1 M5 t( M(x - a) = x - a! ]: y7 @6 ]/ n6 L+ @8 |
(x - a) (x - b) = x^2 – ax – bx + ab
; L1 a3 `# p6 W/ W+ L. G(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, o, D: z4 H& Z( x3 T
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd5 ?/ F+ \$ n% g1 P  }
如此種推，
' E( o! t! X$ [" ^& F3 B# ^(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???( a% G, g- p  }+ J8 t

4 T, k; ]$ T% A$ m[ 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& F5 \/ }0 Y6 B* |$ t

Originally posted by Triangel at 2007-4-18 01:26 PM:, Y2 J6 ~4 N1 a7 R
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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# p3 T2 L  y# \% l6 V[ 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:2 l# W: K+ V9 F) o& ?
咁難既=.="5 K6 F7 f, h# o1 a5 Y1 H" G1 P

* F4 ~& ]$ g5 q5 a8 |/ J% E[ 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:, K# b2 U& g7 y/ N7 i
第一個答中有獎
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1 ^$ a3 M0 n+ F4 v! Q% }' w

1 p- v5 e2 z* Z! u(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 t# o* i% J; }. }4 s

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; H" }; h! ]& K3 {! r(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
' C: X9 t8 l+ S) h& P# o- N似IQ題=.=" R# b8 S. p' F3 _9 D/ \9 g
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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:1 ?1 P: Z8 Q6 M7 m5 |: a
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(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
, p. T# ~  I6 t8 C4 k5 H- Y2 s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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+ V' k7 k9 ?% ]4 t8 R  J7 D4 n這條問題，貼落吹水版，名副其實
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1 N- K( L: R# E) ~7 F[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]