| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎" f6 L' e4 z! p: i9 ?% g& u3 d

7 R" y8 j5 l% r$ K  ~, Q* t(x - a) = x - a
5 L( Z" R: X+ }0 s3 k(x - a) (x - b) = x^2 – ax – bx + ab( L2 b- t% v: \) n8 r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc- x- n$ c1 W! T: }6 t- F: ~& ]" V
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
2 h' R# Y% V- U' r如此種推，
9 K& O- J" T. w# R& v(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???0 I" P( z: }8 `( S
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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( S4 K  }& [# a2 {- u, v

Originally posted by Triangel at 2007-4-18 01:26 PM:# u" T0 ~* q$ X& i
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ 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:
  ^+ D! ?5 a1 k. u1 G- 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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) x7 d8 g- `: u: k2 v! g8 _% }Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
& i3 i) t5 Q) x& Q3 \第一個答中有獎0 K. q( O4 r( \- f/ X* V
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(x - ...

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5 f) L! M( Q9 S/ N1 _(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:% B, \2 N, k  ?/ Z4 L

0 F* g* J; B3 M" ^/ A3 n5 Y( c+ g7 @
(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題  C1 }' N4 f) U" S  o
似IQ題=.=" N! j2 l: n2 A; y4 m+ A- Z  A

2 }( }" Q. ~) p. ]4 n2 M* z) i[ 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:
7 C( I7 v( D1 j" I! N% B, ?, K9 ]- _
3 }  {: m/ [! _$ C
(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 K( F" w- {- O: o
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/ |3 d$ s. a% I% L* ^( S  J1 u* g

6 H% Y% H& n- J% s這條問題，貼落吹水版，名副其實7 I; f- H5 D2 Y' `

/ a) Z0 r& z" y9 E! c, L; M" Q5 `[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]