| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a2 t8 g; [& T3 {1 \2 w- }; F# O& D
(x - a) (x - b) = x^2 – ax – bx + ab6 k# w+ G+ n9 \# {# \
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
0 o% P" v$ S2 O$ N) F" B(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 H, h% x1 {# b# ^6 R4 @
如此種推，% n& x4 j( D" c" f  {
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' V$ O2 \) q1 m) I4 P# ^  w! [

3 E: G& b4 u: k# f, a+ C! e9 l[ 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4 C4 z& _8 y3 w  I

Originally posted by Triangel at 2007-4-18 01:26 PM:" D( w6 s8 ?  E. c7 w& Y1 l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% s1 }- S2 Y# s
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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:
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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8 \3 `3 N" b# H; rThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:/ y6 m$ |) \5 R: R5 D
第一個答中有獎; z; k1 g2 J. R7 z5 A7 d

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:& Y/ P+ i/ l4 j$ ]1 P) X; o, P* {
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(x-x)= 0 ，所以答案係0，is it?

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, S$ I- C3 J& p/ f( v唔似a.math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:
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(x-x)= 0 ，所以答案係0，is it?

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3 S2 u6 f) J: V2 r0 T/ R: Q+ R. UBingo~

waikong

我係學校個學生會單張見過
7 M# b7 J( L5 Q) ^( C* ]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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+ _: x. Z& e) X這條問題，貼落吹水版，名副其實% @& j2 ?; O: A9 j4 V3 ?+ u

1 }4 |9 \0 E) q# w3 b& k6 Q; y& D[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]