| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
  ~, [8 J" {! b9 \% i& x(x - a) (x - b) = x^2 – ax – bx + ab
& O. b0 p3 C6 C(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& p. \& q$ V# a4 ~; t* w4 j; M
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd( c5 X: n- w* e3 G
如此種推，
6 R0 X3 @$ a) \1 y% ^4 J$ R# N. x(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' `$ j9 N! H7 }8 p7 D" S' x6 s

9 r* o# L- u( B9 Y7 m3 H7 T[ 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:' ~7 P$ R3 A) R' G0 Q# Q
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. ~" Y1 F/ f4 p1 D9 U
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9 {, B& @4 e+ W* e( s7 g[ 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:
% ~' V8 _# m1 N3 u+ A; p2 U1 c8 _咁難既=.="
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$ l+ t" ?3 I; Y# A; ^2 z- O[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:  E' u$ a9 A$ ~; b/ T
第一個答中有獎- }" j; ], b) t. ?- c
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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:9 p3 |2 O" M% d) l; G6 v, @
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(x-x)= 0 ，所以答案係0，is it?

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0 s2 K- C" X# f唔似a.math題
! A: l3 P& S  A1 B' \似IQ題=.=. |0 f+ V' k1 ]1 o+ m6 Q

. N, l3 E5 G2 I4 I[ 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:7 U- g# b+ _& a# Q
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/ H& D# J+ e' K% l8 h0 o5 n* k(x-x)= 0 ，所以答案係0，is it?

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+ C# v. j$ J3 a% ], Z/ w- R  SBingo~

waikong

我係學校個學生會單張見過1 ]' N' @* P! F7 w
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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這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]