| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a3 p' `7 z; R2 R2 R5 G& B  I
(x - a) (x - b) = x^2 – ax – bx + ab, a. ]% b$ I" d$ X7 P5 p9 r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc5 X9 v. l2 b2 F5 ?8 i. M' R3 [
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" p( e% W+ }. T0 f3 v: d' p, O1 ~
如此種推，
8 C# Y3 Q( D% g! m  x5 c(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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% Z2 V; C/ o+ I, k+ b[ 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4 J0 ^% E5 `+ B2 U' n5 N

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ z5 `/ K6 Z$ P& T! x8 n. K1 U(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc' g& d: ?) H) I
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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:' a4 ?0 f' \. I$ N. T0 G
咁難既=.="8 b9 A6 x1 @0 |- Y1 C

% R( B4 @; Z: ]+ U* q, F% z[ 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:2 j* y0 C6 k: E+ E9 M- _
第一個答中有獎7 Z* e5 s- }0 ~# r8 A

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. V- L- @* P5 b1 K1 J(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?

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2 v3 J# {) C2 Y$ L( N3 M/ b唔似a.math題
+ s# N& M- |0 c) X* z0 ]似IQ題=.=
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- u1 e* B6 p" ?- t[ 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:
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7 _+ j" K  E9 S5 D8 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8 R2 T: ~1 V  m1 I* E/ c5 o& v
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.........
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這條問題，貼落吹水版，名副其實; ]! S. ^; k+ q* S- J% s7 \, W

  ]- \0 V" b) z4 Y5 |6 B[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]