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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! G; V; Q; Z. i8 A6 g, K2 j7 y
(x - a) (x - b) = x^2 – ax – bx + ab0 z) i0 K$ p2 a$ G% W8 \% j7 S
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc) \5 O* k2 I, D# f" M
(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) = ???( R; X+ _2 c6 s2 v6 k9 j; L

[ 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+ j. r7 M( c. C P8 J: H

Originally posted by Triangel at 2007-4-18 01:26 PM:/ D4 o2 E4 z( F- D1 S7 }4 v
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. }1 \, E# Y$ P6 p

8 g! o: @& D5 ? ?& a! D# }/ \

[ 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:9 A- l# S' H1 K6 I% ^% e2 _+ R
咁難既=.="
w8 {0 k" u: k: n5 H" E) z. d0 Y7 I: f& Y# [# ]# W
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

) A ^( q# E0 Y% e {$ X4 q
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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:( Q0 j' i$ @3 ^2 O
第一個答中有獎
, H5 U/ Z5 {. @: T, Q. U8 R1 Z4 C/ s" Z. P. V0 X0 F: N% ^$ r
(x - ...

; x1 i- s8 J: w% `
(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:" F) p+ P. ^% Y6 m6 ~2 W# H7 G j

, F# E6 X$ V. ]0 a
+ U( W( W1 X7 v2 ^(x-x)= 0 ，所以答案係0，is it?

- q, D; s2 {8 ]$ R7 D- y/ x' _, z

唔似a.math題8 ~3 O$ i3 ~) o: ]7 V
似IQ題=.=

[ 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:
1 L3 N2 ?# g! d7 Y4 i/ k( y F, P0 q9 h1 w2 k1 I, L& e

& L8 h1 g1 b4 [, B(x-x)= 0 ，所以答案係0，is it?

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.........
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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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