| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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; r& E8 v3 s# V. X(x - a) = x - a
: L, u5 e8 b) {(x - a) (x - b) = x^2 – ax – bx + ab, c7 e- A% k# \% |
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc" G  i( n, ]" S, M4 k' h
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd$ U  h1 n: R1 ]
如此種推，8 E# g) {9 u  ~% M- H) I
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???2 ^* X! ~% Q% v# D: k+ b- m

  s) m3 v; \% i[ 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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
2 q! h% A! E: w5 n$ Y1 J1 y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: Z5 ]3 w# ^! |. Z
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[ 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:
: R' S$ d) k+ s" P咁難既=.="
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2 X$ F' J) y+ G- z1 P[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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) n/ j) k- `9 fThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:$ J8 l6 L, d9 x1 |  Y
第一個答中有獎* v  Z! h! H$ O% ^# F+ O0 x* p

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( x$ m9 I. _# h+ x(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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( _  P3 o& Y: M1 L3 h5 r(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題8 S- B; Q" R8 ]+ K9 M, D
似IQ題=.=( M* ]" a  [7 m( f# ^9 O

3 T, q/ `" v5 D: P# a# C[ 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:3 ~+ ~( @  D" Z+ ]
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& P# a% A- y5 b9 j. A: F(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
6 W" l1 }& |/ b8 n" O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.........9 D, W7 t  x" ?' k! s, r) D
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這條問題，貼落吹水版，名副其實& V1 y+ l. L7 O: Q- I2 j

+ ?# x" e+ X. X0 L[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]