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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5 B9 U! A6 Z' J. n% v4 X7 J

. U, ]+ u1 k) Y0 }(x - a) = x - a1 f' L/ N" n+ t. w2 A" y' x( \* u
(x - a) (x - b) = x^2 – ax – bx + ab6 J6 V' v- G0 R& T$ j2 e
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
) @0 U; G3 n/ D$ C0 k(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd3 H3 p8 [4 J1 r7 q
如此種推，
5 x4 {4 U2 `5 }+ {3 ^(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' A" F2 u" c5 R2 n& N4 T  u
Originally posted by Triangel at 2007-4-18 01:26 PM:
+ o9 n: d4 l1 d: b(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
2 u! e* x, f. g. h8 P9 X
9 n$ x& U* F  R# X) x4 I/ \( ^
$ s5 x' D6 x: u1 Y( b/ H: n+ u: I
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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:
) s; a4 w7 |6 l0 J2 Q咁難既=.="
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- g2 o; r3 x  a' b# N: F[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
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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:8 i  w4 Q8 `$ I; M/ R- o3 u1 X4 Y
第一個答中有獎
0 N* E: w) w4 o. c. {5 W4 d
- c) T6 I3 |. l2 G/ C* M- r(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:# P/ V4 O+ e8 R0 x3 [
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  i, }, d9 o  g
(x-x)= 0 ，所以答案係0，is it?
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, Q# ]5 v6 a( B  ~1 K唔似a.math題
, ]% R' @3 [" v4 h1 P+ y3 h似IQ題=.=
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; V) k) E) r% d[ 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& [4 U- i1 G. Z  O
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& p5 x6 E* ^7 B* `1 u
(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
9 C) |4 R! O& H' n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.........) o4 f& k! T# y+ F6 Z! J
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這條問題，貼落吹水版，名副其實1 }- i- g& U# `, I) t; _! v
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]



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