| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 F7 G  J0 v! H& K# R: P" w& v( J
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(x - a) = x - a
) I7 O9 O, U8 w; u/ ~5 |2 {4 K% z(x - a) (x - b) = x^2 – ax – bx + ab7 J1 R8 B" e: ^9 `1 S- I
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ R3 _! D  _2 q% ~; e5 O& _(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd6 W% |4 H" C" |9 h1 p$ H/ g% ~! t
如此種推，
6 s7 f# T7 L5 l# l(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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% N& M' \, E. u[ 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  \6 Z  A" C1 |: w- `! D

Originally posted by Triangel at 2007-4-18 01:26 PM:* S9 s$ ^% u- ?& M1 z; N8 I
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc+ Z5 n) V$ ?  v. [7 u0 R( T! B4 B
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. ^* i" G0 }! m, }4 Z( g# j0 x[ 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:/ X! c9 g* M7 n  x& ?, e
咁難既=.="
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" V! J8 t0 E6 q: y3 N# V7 m[ 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:
) @& g1 w: W3 ]; \! m: J第一個答中有獎
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(x - ...

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' M+ _+ _% X+ e: b1 W3 @+ L0 B8 x(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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! R1 y, s3 Y: N7 _, s(x-x)= 0 ，所以答案係0，is it?

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% D/ v& M$ r: i唔似a.math題
. r+ Q* J' C* [0 f3 ?3 B# n) M似IQ題=.=& @3 H) ~: H' S' @" x8 s) J

5 @! l$ C9 o% [: K[ 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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0 J6 a3 \7 z$ ?! A
9 `- x' D' U; @6 l# R% z(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
! R) |5 ?# ^8 F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.......... |6 J5 ^. _( c3 S5 e! e

7 ?" [+ j; |: n1 a5 W+ ~4 v4 D! u這條問題，貼落吹水版，名副其實5 n1 E# K5 y/ B5 K

8 Z. W. K: n& `7 y, f* J* m2 Y[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]