| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎' W1 G  N& C+ Y4 C

" T+ G$ ?; F6 i1 H/ Y" M2 [) e(x - a) = x - a
5 i4 d* Y  }  |* Y/ J- ~" t# Y- x0 I(x - a) (x - b) = x^2 – ax – bx + ab
1 Y* \# f3 ~$ A0 d  S( O(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 j" y, _! r8 S/ J0 y2 p% `( y
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd# B. o# q# A% e: e) K- D' j, d
如此種推，
; ]: N) U3 |. a(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???: {5 p! g% i; d7 d- d, d1 t
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題, a' V1 r* Q. ]

Originally posted by Triangel at 2007-4-18 01:26 PM:3 k  B/ W9 d7 V" h: [- x/ }
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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0 y: G5 {0 k  N7 x1 x

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  i, H) \# s6 ^[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:$ v, k7 s! v( I5 U' x9 x0 v
咁難既=.="
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" O% R7 c; o2 a& F# z* ]/ l[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

( M1 _+ c4 g* w5 {

! J1 |5 Y  p$ D9 x2 GThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:: d1 R8 N, O( v8 a* ~
第一個答中有獎
5 K" n3 d$ v( g5 H+ Q# f. u5 K: A# G0 T- V  i* `
(x - ...

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' K, I$ R2 j. f& l4 {* B/ M& p(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
% o' a$ P* T$ i: h, M
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% w- c' J* H* ]5 Y(x-x)= 0 ，所以答案係0，is it?

" s& U! j  x# d2 v

3 N3 I4 n& Z, U; L9 g! `6 J
% {8 X( X& |3 ^4 _) S* z5 b  \唔似a.math題
/ x- m# r+ [& b* ~$ |( k9 T似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:
5 N- \7 U/ H5 l( V: }4 M! y- T' I* r9 n& @( K7 u, P/ n1 O
9 R5 ^3 ]9 N0 Z
(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過+ [4 p  m9 `% b
諗左一陣先諗到

playbr2

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

karen0123

(哭)~~~~~其實我都知係0.........
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! E; H9 s3 \: S1 ?1 V5 M& l6 i# B! y這條問題，貼落吹水版，名副其實5 L# Q. h2 [$ C: i& V# {" R) w+ {
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]