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標題: | TriTri | A-Math 加分題 | [打印本頁]

作者: Triangel 時間: 2007-4-18 01:26 PM 標題: | TriTri | A-Math 加分題 |

第一個答中有獎
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(x - a) = x - a: ?$ ?) ]. n( h: `3 Q  L
(x - a) (x - b) = x^2 – ax – bx + ab6 f* m+ t! a1 V2 s2 f- z9 K! b* D/ @% T
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
如此種推，
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???

[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

作者: 大大 時間: 2007-4-18 01:41 PM

點解你個問題好似有d問題0 x* [6 l# y0 D* l) ~

Originally posted by Triangel at 2007-4-18 01:26 PM:( ~( g9 D, a7 l/ O7 e6 T
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. Y" d7 B$ m8 M
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

作者: Triangel 時間: 2007-4-18 01:54 PM

Originally posted by 大大 at 2007-4-18 01:41 PM:0 `5 v& e; @3 C5 @
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

# F% i' q: j% U. E1 ~
Thanks! 更正啦

作者: littlenic 時間: 2007-4-18 01:54 PM

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ y5 H: b+ \8 E) a! O第一個答中有獎" b# E3 b' A& y/ j* b- K4 _

; Y; l7 B" N9 u3 u0 T( E& O9 @(x - ...

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(x-x)= 0 ，所以答案係0，is it?

作者: 大大 時間: 2007-4-18 01:56 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:; `1 g( @& T; d6 K# I/ L" t

. ?$ I* i* L e/ L- y* O7 C X' f0 v9 W; w, L
(x-x)= 0 ，所以答案係0，is it?

" M: ]2 z& C6 I7 H

0 z2 J2 b3 a: [
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唔似a.math題( ^2 t f/ T# r7 n- {2 \/ u
似IQ題=.=( ^" m# k6 g" U7 H

[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

作者: Triangel 時間: 2007-4-18 01:57 PM

Originally posted by littlenic at 2007-4-18 01:54 PM:

* O% Q$ d7 _- i+ }9 z: i
: t r" e& K W(x-x)= 0 ，所以答案係0，is it?

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Bingo~

作者: waikong 時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過

諗左一陣先諗到

作者: playbr2 時間: 2007-4-18 04:00 PM

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

作者: karen0123 時間: 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........) q. V& E. `; X0 [/ z4 ~; P4 h
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這條問題，貼落吹水版，名副其實

[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]

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