| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎6 N; E' i& p4 R( n* }

. N" F  `( k  a1 |3 t# }(x - a) = x - a
  _! `  h3 m2 A9 M8 k) N(x - a) (x - b) = x^2 – ax – bx + ab
2 G  K0 m  [8 _# A(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc6 r% T# f9 F# y; a, B
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd% L3 a, E* R" r" a# G
如此種推，( M5 E0 L* h# K6 X$ @' A
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???/ ]" L9 C3 `  Q! j; C% q

4 |% m& l; V, w. m0 K+ O[ 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+ A1 P/ B2 q% }9 o" ?

Originally posted by Triangel at 2007-4-18 01:26 PM:
' C. ]/ j' J( h/ ~- L( _7 Y, J(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: y: X! d. l9 b6 e
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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:
+ v% _! x  K- ^  B咁難既=.="; y$ t/ M7 ?5 r; I. |
1 P; i9 r8 p0 S, A! e5 H
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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, G4 s7 R/ C$ T$ g+ A' IThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:* g+ u9 q( v* g8 f% F
第一個答中有獎
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(x - ...

0 ?5 _8 j# `: W+ m0 d+ y3 T

1 @. Y1 R4 O! a8 k9 Z(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:4 w8 }) c7 y% `

3 q5 ^4 j9 [8 h$ i1 D+ S( b% @- ^  k) |
(x-x)= 0 ，所以答案係0，is it?

" b2 X& ?8 O+ ?/ g3 m- T
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; ~& d0 r% F/ p6 |唔似a.math題9 h+ D3 i1 p. D4 n1 |4 k
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:
! f. Q6 h3 e: D+ _- l
& ~7 ?0 N: `  l3 y2 r
% s+ S" r1 g2 g/ G! L" _(x-x)= 0 ，所以答案係0，is it?

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% q5 v: q1 G  S; \+ b8 dBingo~

waikong

我係學校個學生會單張見過' P/ V7 r7 F% W1 K1 z: u
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.........
7 y8 a. j/ {. d3 _- l( C0 V( H$ R7 _- e. F- E
這條問題，貼落吹水版，名副其實
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( n0 W/ Q, ~3 h  V2 Y8 S; {' o[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]