| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
- q0 `- i4 d9 E! x$ _6 c) I1 T$ R(x - a) (x - b) = x^2 – ax – bx + ab- H* s+ b8 }5 U( e* p7 |
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
% d% A* L8 J. G8 n* Y( g" C(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 }  C' C2 R. \# D9 @( \  R
如此種推，
( d+ j$ l# Y. m# x, ^  S(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ 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9 H) I0 R0 X% z& |1 x. j6 K' s

Originally posted by Triangel at 2007-4-18 01:26 PM:+ _: w$ T( o6 }) u
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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  {3 I! i) l* `8 R6 V[ 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:7 |0 U, {3 m1 A7 B; P+ p
咁難既=.="
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7 |/ X& Y9 r2 J* P0 W0 f$ d3 }[ 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:
8 w$ b1 H- K- s  R第一個答中有獎( h% p: u$ }4 G4 ?% z0 T; ]

, y6 q1 o  K; [2 T. l1 F% }7 b(x - ...

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+ A" x* z8 b6 m/ C/ r1 {: L6 Q2 \(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:$ n. N+ ]& r/ `& f2 ?6 g0 Q( H0 \
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(x-x)= 0 ，所以答案係0，is it?

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& B8 n, {& W3 R6 T( R2 X; A) L; f" t. d' V9 ]4 ^
唔似a.math題
! C7 ]+ C) j  V# h6 \* s" L似IQ題=.=
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! S! v' l3 C' d  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:
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; q% S" [/ Z- n(x-x)= 0 ，所以答案係0，is it?

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6 k7 c8 \( B- \0 _Bingo~

waikong

我係學校個學生會單張見過
* R! @4 a1 s' V; p. P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.........- A! W3 B/ X% K

$ j2 B2 L3 y6 O5 ^6 l' ?3 }這條問題，貼落吹水版，名副其實: [$ ^7 X  S; a! U
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]