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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1 ?- o& S8 z- X4 ~2 F+ A# l
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(x - a) = x - a2 s0 k- |; Z \4 ~8 z4 G
(x - a) (x - b) = x^2 – ax – bx + ab% ~3 [/ q; D7 E2 l0 }! I4 z% K
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: @2 u' }; Y1 A! P! P
(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) = ???# R7 Y6 j% g4 G* d, G$ |$ q1 M
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[ 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( Y; W3 y/ a) t% L: [2 G8 x

Originally posted by Triangel at 2007-4-18 01:26 PM: Z' [4 v8 I. {- R
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
3 ~. y5 K$ j4 B6 r$ I1 Y3 E+ k
" {& `7 X" d! t) |. L

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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:
, _- L( V6 M' e+ p" ~# e3 ~6 Q. {咁難既=.="! y) O5 _6 n. }# p

4 b+ g! O6 E+ S/ u7 m: m: i[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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:9 H3 |4 n; E0 F+ D2 A
第一個答中有獎) J3 B6 a( d6 i' V
/ x0 E) N4 E: F$ \" ~
(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:
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& Y2 M# x$ e% V/ _(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題/ a" a0 k# ~. @! {5 O4 V
似IQ題=.=
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[ 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:& _' b! S( }4 R

u9 O+ @5 O; Z! {
) _+ g) h7 y+ _# k4 s3 [9 g2 J" G(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

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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.........

這條問題，貼落吹水版，名副其實

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

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