| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a2 M3 ~5 H2 T; X) A: I# _" K$ B
(x - a) (x - b) = x^2 – ax – bx + ab# H$ D: K9 a! F& D
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc' {3 m. k3 x6 N* G7 U: I
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+ K' w- Y/ A1 v1 I: v$ X) z( Q
如此種推，" N6 C$ g! |* u) m+ [
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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6 V' C& N+ A9 ^5 o2 `[ 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:
+ f$ h' a. O& ]6 F" N* d1 m(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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6 p5 b' \- N0 T- f* I[ 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:, |; f$ n# s' }9 e
咁難既=.="  c/ }8 a# N9 k* k5 ]# |  j1 {
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[ 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:
9 @0 M( X$ d" q" r; k6 `  W第一個答中有獎. {6 n9 d/ h, s

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9 Y# I8 |6 L+ c(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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" S8 v9 S: r6 h8 J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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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過1 y6 W/ Y& A8 E- ?; ^" @! C3 P$ Y& a: d
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.........6 m. ?/ @1 |$ l

" o1 m: z$ B9 W8 V8 o4 l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 ]