| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
3 z& F+ a5 d% j(x - a) (x - b) = x^2 – ax – bx + ab
0 o* o% D- N5 m1 j; U; U(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
* n9 E& L2 e& _% O+ {6 B& h7 L9 D(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* L; m& L2 r% P9 C% p如此種推，' Q3 z" a" Y! E( U$ E' S: D
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???/ v+ Q" R7 s$ l+ A8 F- b+ a+ P

/ l0 w' S% T; A3 \& m7 c[ 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% G6 S- b3 H: H" T1 s

Originally posted by Triangel at 2007-4-18 01:26 PM:1 l) n' l" H% _# g* \: q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. i) v" s  ~0 C# f# ~0 c" @
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[ 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:3 P( @( F$ r' }  a1 w
咁難既=.="* Y( x  N, ?& A" w+ m! T& H3 e3 [
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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6 \* |: f& H% Q$ X: O& BThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
3 l6 N  p# b; c# T第一個答中有獎
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(x - ...

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- r0 n$ b- n* s( b9 i8 E+ a(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:% H- P. |+ t4 p9 L& i( o. C- O
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
3 g" \, k4 F8 M! Z: }% p3 _1 f似IQ題=.=
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# q" ^/ `5 {$ o$ W8 r[ 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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4 y& _& V4 Q6 a(x-x)= 0 ，所以答案係0，is it?

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8 M3 s2 e  n1 K. A) ?1 XBingo~

waikong

我係學校個學生會單張見過
8 k8 {% X$ Z0 O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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! k8 u, X) F: J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 ]