| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 M- m" ~0 Q5 Y8 w

5 k$ ]/ |2 l+ W8 w- w(x - a) = x - a
- e' Z5 d; {: r( q2 Y* \2 j0 k(x - a) (x - b) = x^2 – ax – bx + ab
; {# }8 D) ^0 d) a(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
8 F1 J2 A5 A; n8 I" v/ l(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+ }. m- ~# S  v
如此種推，7 w) n/ u: d, P! }1 b
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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* g5 |- _+ x4 @  j[ 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:# T) i& z- \# E5 X' o1 ?4 {
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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! u0 _+ K, h, A[ 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:; C* A$ K7 n8 e' W+ P8 \
咁難既=.="; J1 d8 L! L5 [5 P) B
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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:
% @; T' ]0 c9 s+ A) a! b第一個答中有獎9 V; f6 I" R2 x; `3 a0 f) \

, u* H' g* n6 O$ S(x - ...

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& T% A8 l, J! M(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
( i5 m6 A3 u: L8 M, A, k4 `8 c9 u  r3 R
4 F0 S0 l3 B) P$ U5 m+ t( L, h1 ~
. y; Q' ^3 ?6 B* `1 w(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題8 c& Z4 a' _9 V) m2 A
似IQ題=.=& q. I8 `. w% G) m' g& I
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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:4 Y, R# E3 M1 Z! y( S
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! U, _* @5 c% D) l(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
" ~+ U+ }3 h8 F3 B# |8 }5 W: Y2 q* z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.........* ^4 o" S7 \% x. v- x
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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 ]