| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& D7 m* g9 I. ]5 v+ f
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(x - a) = x - a
, S8 L. O- ~) {, E! `* d  c5 c( {(x - a) (x - b) = x^2 – ax – bx + ab1 ~& c" `/ Y, I1 g8 s
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
) \# a* \5 ?$ U3 f1 Z: O# l+ V! z(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd$ B0 G2 _$ E) i: L
如此種推，) I* Y% R9 ?2 c3 Z0 t
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- h- g6 D( v9 U8 ^/ \4 G
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
8 b; x8 A& ~7 O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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2 E/ N4 h+ s, ?! A: o3 }3 `0 o; e[ 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:# g" f4 |. M7 e3 G( U: a  A/ K$ M
咁難既=.="
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  F' d8 T" Q% J, @6 z8 ^[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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( I, u* m8 K# q0 B* Y3 j  kThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
- P) N: F- g" c" P# ]第一個答中有獎3 S. S2 I* t+ M6 s

& o; {/ `  S* S(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:) X8 u; N! |; g: u% {7 K9 [/ t

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( @# A) I* a+ P- M+ d(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
) x1 ~( V  S% j3 E% d" i5 V# q似IQ題=.=! ]& t' Y# d5 F% @' m  ?$ T( N- |% M
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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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6 I5 Q' Z# d9 F+ @% l7 t( v( p9 hBingo~

waikong

我係學校個學生會單張見過
, r6 M$ h/ z& p+ a$ `% J* l, {* p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.........' I, s7 d+ x7 Q  B2 Q5 @, c  G* Z

& a6 P7 C: [/ ^' |8 u1 y# N2 p這條問題，貼落吹水版，名副其實+ S- L3 p) z2 y/ ]. Z5 [  a, Z
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]