| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
, Y3 x+ h& V3 |9 R" j% n6 W(x - a) (x - b) = x^2 – ax – bx + ab
) M' Q/ `1 y! V7 j(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc' r/ A& c* k% N0 `
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! W; {5 b  [4 w. C- T如此種推，7 w# m; B! R% T5 N% V( e5 x" A1 q
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???& b! ]# ~( |4 ]+ Y, ~
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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* V5 e! q) `8 q" K, h0 t. ]! D) h9 I

Originally posted by Triangel at 2007-4-18 01:26 PM:' r) S* r( J  C* c. Q' u; B4 ^! X: H
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
* p8 E* U$ W4 x; T; B' Y: |5 A2 ~  M$ p5 c

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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:5 W/ r  C( R9 H. y
咁難既=.="( C& E. ~8 v! ~( J

  t# ~& ?; @5 z- @3 T[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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% E0 \$ {- i* L$ Z2 L. l6 FThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:7 }1 k! P% I* P, K# G: O. n) W( i- A
第一個答中有獎5 [. p$ |. C7 C, O
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(x - ...

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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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7 D4 f0 d! b4 @6 l(x-x)= 0 ，所以答案係0，is it?

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0 w+ }# C5 X, L唔似a.math題
" D9 m7 L* X/ g  w3 P似IQ題=.=$ z% L& g& \! m" `5 A0 O4 p

/ I1 F. |  L9 q9 f1 n" N[ 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:0 i8 W& @2 ^- j" @7 W
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  |6 U* s  W2 U& ^9 q: t5 p1 L
(x-x)= 0 ，所以答案係0，is it?

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' _" w/ e! L4 U9 eBingo~

waikong

我係學校個學生會單張見過- B/ D/ h9 o7 j% \! }" N
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.........5 R' D3 @1 Q$ e8 n* ]* B3 S
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這條問題，貼落吹水版，名副其實, [* L9 R4 i' P9 C/ a+ v! K

( W0 m: j" |* T[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]