| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 y8 p; p, {/ L3 s0 T$ e

- R# M; w0 k" Z, A(x - a) = x - a
" K1 n3 k  \9 G' F7 K(x - a) (x - b) = x^2 – ax – bx + ab" X2 |7 n5 ^1 c5 V
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc6 u5 b; e& w& o, V5 x8 [
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; }8 j; o& B* k& H5 A2 l( L
如此種推，
) l/ k- G' t+ H1 J# w& [5 t(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???( `# p& {' |# d: O
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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:
: n4 }8 n" G/ p0 J(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc3 O. M. M% V6 J: ]7 f
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2 i; }2 i9 _: S# R0 z7 b[ 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 |0 C4 ]# E* w% c8 r- M咁難既=.="! |+ R8 w  y$ B) I4 F5 h$ w
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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:
- F1 b/ [1 K  q' P4 `, V第一個答中有獎
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(x - ...

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- l; Q6 K7 h% p7 n) N2 }(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:+ [7 d9 p0 D  ~9 ^6 H- W
& {% G6 ^' O5 N* S# g6 K) {
2 x- \- e7 A! P6 w) C1 R
(x-x)= 0 ，所以答案係0，is it?

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+ @( A6 ~; S# s唔似a.math題
2 i6 P- a8 [& w4 R0 S& l似IQ題=.=
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' I: z: n- |, @4 u[ 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 y% ^; F. @" i! z' `' K  K

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(x-x)= 0 ，所以答案係0，is it?

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+ w! w: w  F" [9 iBingo~

waikong

我係學校個學生會單張見過1 j3 ]( M  F! N0 ]6 }
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 ?) z& B5 h7 g* U. w& t; s) @

) w" ?1 s" b7 q/ z( F2 s這條問題，貼落吹水版，名副其實
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8 }- H# i- _/ P[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]