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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9 v  [$ L, F- |9 J/ ~

& O! n% M( A2 z& V2 b5 B1 h(x - a) = x - a
4 W+ b5 i" v0 w7 Q% M(x - a) (x - b) = x^2 – ax – bx + ab
4 n# Y" y) l: C2 ]  }(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
. b; U$ i' W' ^: p. ]! {  p(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; o3 h7 S! \% z7 M
如此種推，2 i% l1 a. X7 U3 ^+ a
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:) X+ G  y9 Z/ O5 R, ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc! ^6 p! V9 a! U, e

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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:9 _" p& g# j% z
咁難既=.="
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. L3 i" p2 }; e7 U1 P' b[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
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+ v' a" r9 E% bThanks! 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:8 R1 |9 X4 F' {0 s& E$ c
第一個答中有獎" C2 y8 [4 N  r7 |( a% G# a

+ t& K2 k' }. {6 w1 u+ I(x - ...
. q0 o& U, f7 ]

) \( n4 T6 ]- O% ~0 Z+ y" @0 m(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:
$ I7 s. Q; C) i. [8 v1 J% d) u5 F9 v9 C
2 v. h# b! G7 d6 I' E4 B
(x-x)= 0 ，所以答案係0，is it?
% r' d5 A- l2 q( U: `- u6 X

+ `$ {/ |; t0 Y% z. R7 O7 N# f* W0 Q. {+ j# _
唔似a.math題% {9 ]+ ~1 ~3 S2 W
似IQ題=.=
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" B$ \. [5 _6 a9 g. f4 i[ 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:
8 P0 a: D& _' Q& \' S3 ~% {7 ^! Z8 [4 d) I8 I# @
1 ~2 d/ K: t$ r/ o
(x-x)= 0 ，所以答案係0，is it?
8 y+ j" j/ P# R) Y- h5 U. M- x$ e1 }. Y! t" U# a
Bingo~
作者: waikong    時間: 2007-4-18 03:53 PM

我係學校個學生會單張見過
1 [/ `* X- r9 u! Z4 z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.........0 \1 g9 L8 D7 \, c$ g# Y% z
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這條問題，貼落吹水版，名副其實. P- k; X0 @5 L* ^9 C% O8 b' [

$ P9 H& s& v* ?3 L. o8 D[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]



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