| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎& ], V7 O  [+ f1 h5 {) ?/ m( R

8 T1 h' C, t' W- c" t, o(x - a) = x - a- l6 q% z+ P4 O9 p7 _# S2 k
(x - a) (x - b) = x^2 – ax – bx + ab
5 x9 z8 k' X9 u$ |6 p# S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: n4 l# f4 e0 k. |(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& H# I2 E+ x/ Z5 j, N2 ~& p  g6 i
如此種推，
" i2 M, h6 r" p, G6 l(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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7 y0 c1 x$ h9 V[ 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( W5 }; g  F8 Z, N4 |  Q8 g

Originally posted by Triangel at 2007-4-18 01:26 PM:; L0 Z5 g  U% [6 d+ `# Y
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc- H1 N+ z, ~+ o  i% h9 x
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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:
( e9 x8 o" z- X, y0 D8 Q! ^* B咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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  K8 ~/ y# x1 x. r! B' j! Y/ \7 uThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
" z2 f4 T8 @! |$ ^第一個答中有獎! T( b9 t. f# q! N* n0 L
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(x - ...

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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:
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1 J& S8 \6 Z) o9 X(x-x)= 0 ，所以答案係0，is it?

3 m8 [& I+ L, D8 D) q. ?
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; X( Y) P! Q/ s7 w' w/ F9 f唔似a.math題; r& F. ~  i, b
似IQ題=.=
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# D& a: N, N4 ?[ 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:! _4 c" s- y( s  i3 k
% |7 ^) Y2 y5 |! U. k2 n' q1 {
9 I- [8 z$ m7 D, ]: L, z' R9 N
(x-x)= 0 ，所以答案係0，is it?

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/ c: O& s$ l5 y8 nBingo~

waikong

我係學校個學生會單張見過
" F7 N) z1 @2 ~1 E) j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.........0 M8 o# T* U- |% U' z
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這條問題，貼落吹水版，名副其實
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% J. p& ]% I, Q8 g2 p[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]