| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) b" t) S5 z7 V: F6 q  q! p$ \

9 ^" S# z$ S1 h$ d0 K6 _( ?(x - a) = x - a% [4 {9 V# j9 x9 q
(x - a) (x - b) = x^2 – ax – bx + ab
4 Y# y5 \4 [" b+ s6 b(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
) t3 r6 L4 l; C# R(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
" K" a8 q' d1 i7 s2 S! o4 i如此種推，
5 V; M% p: q; ~6 _$ G(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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:
5 X) J  Y. t( q/ ?+ d(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc6 q* {3 d: v. D# l$ l
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4 Q6 G7 {$ H+ R$ ^9 H0 F, [( U, |6 Y[ 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:
/ ]& K) B, |- z( J9 D. ?咁難既=.="0 {. M7 x; `* u8 k- u9 L1 j
+ h1 W% a$ g, j& K' i
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

- }8 v9 y# W: ?

# {- ?5 g( B: A* f+ t8 G7 \$ X) i1 @Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
. H5 @1 L/ [6 \8 S/ x第一個答中有獎6 n! M8 G$ ~# }

+ f* B$ v! d" z8 q7 p7 W(x - ...

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. m  V* x3 I5 t4 H(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
5 u; Y$ g6 {& N" a7 H5 ~: ^7 v( f! i; D
$ W2 y; a4 [$ I( W
(x-x)= 0 ，所以答案係0，is it?

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3 q# a5 X% R: q; s: U. G; {
" o9 h8 u6 i: l* d; t
唔似a.math題
; a* [* w0 _. v* V% t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:# z$ A/ l3 ^; [2 g; W* B& u5 u

/ l" ~6 Q1 H9 q) L+ a& r1 x
1 B' g& T6 M$ _9 z. Q(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; c3 O5 [6 k- h9 K  k- R
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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  R! @7 G9 e! ?4 J( ^! l4 V  \這條問題，貼落吹水版，名副其實3 ^% ?6 H# X) I1 ^( _" K$ O

; |1 G0 `6 B  ^0 w[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]