| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 v& X4 m) c7 K2 @$ l2 i* |; r# l# a4 l1 v
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(x - a) = x - a0 J8 `+ {( `  X  M9 V
(x - a) (x - b) = x^2 – ax – bx + ab8 f2 k9 {4 X1 p9 g- M/ w
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
- F1 ?' j0 X, f/ ~(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( ?# `0 D( y( O$ N/ v如此種推，
5 K1 f# x' O7 x0 T  \; b(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' C/ c, k. \+ e  K) ?

( c! H9 ~' t! P6 f" G: g[ 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7 x9 D2 ]6 C( g2 p& ~

Originally posted by Triangel at 2007-4-18 01:26 PM:; }- v8 o: ~1 o) F$ W6 M: r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc  A# i5 e# e! @

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& c" j$ j1 U' @$ Z: \[ 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:
( T' I# ?3 x7 U5 i( `咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 r. u5 X/ X8 lThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ z" z8 L( t  R) Q1 f第一個答中有獎
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(x - ...

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3 U3 ^, J5 c$ Y. ?- _(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:' n" ~. C7 G2 u& \0 Y% W% n
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題: \8 w4 I: @: q4 A! L
似IQ題=.=! ^( z$ \% r' B. g
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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:: x' i( M* Y# |
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6 u/ O9 w; N9 p5 v4 y0 `" s(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
8 l6 J8 k" ]( B% }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.........: v! f: K# _+ t  r7 R5 N: a; F& u
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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 ]