| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎( W) g  B7 G$ n1 e5 B  ?( @  R

: N! A9 ?, h7 i(x - a) = x - a  C  a4 Y( q1 p! n
(x - a) (x - b) = x^2 – ax – bx + ab  X9 _$ p! V2 n, e6 X
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% I  d8 q6 g. \! ?  R3 Y  T- [(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd$ |' H( q. p2 {- M+ T3 ]$ [* Y
如此種推，
2 h9 ^' {. @# h0 [8 |/ W(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???) v; T5 i" D- I/ Z/ q; u
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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:! ?& n( f3 X: L5 x& c& N9 p$ M- ^5 ~
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: I! y" l$ \' |9 K: z" }1 ]: C
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8 R% b3 i( @# F4 j[ 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:
% T0 q( o; B! ?3 z% d咁難既=.="
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1 w& H- J4 [7 Q4 _4 X/ [[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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1 X0 m% N5 |! @6 D- R! qThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:* ?  s( r7 Q7 K: W* L) b
第一個答中有獎
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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:
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(x-x)= 0 ，所以答案係0，is it?

  P, _( i7 M$ {+ s& h" P" a

2 x3 \' O" {) r* C' S" {( Y. A$ V$ `3 ?! V) d
唔似a.math題
) `; I# v5 Z7 F) W似IQ題=.=
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6 H2 ^. Q0 u5 Z9 S* O8 \[ 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:2 W0 O. [* i! y3 Q1 p' w

' Z. x) [0 C8 }; g( v4 }' Q4 _# K9 o
- i8 u3 X% u* B" |4 x9 S( P/ `(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0 M$ a3 t6 W5 e3 g& b) q
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........." o/ W" N$ @6 H0 k  [2 r& ~
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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 ]