| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a2 q4 G5 O4 p& T) L
(x - a) (x - b) = x^2 – ax – bx + ab( L1 A. {+ |; s: g  L
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ q1 \/ X- z3 O" c/ d3 B7 @(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; Q% |# {. P, z- D( c
如此種推，! m$ ^' b5 ^# M5 M& \/ t
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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( E* a& O( K: p& W% @[ 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3 r- K- I+ {4 h" z

Originally posted by Triangel at 2007-4-18 01:26 PM:
+ k" V8 |$ Z. u6 w( Q8 l(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:: s  D1 v8 Y: c
咁難既=.="; L$ J- O2 W  R8 b$ ?# c
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[ 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:
& r7 v  K# @7 t第一個答中有獎% [( B1 W/ @4 v5 w
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(x - ...

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6 w/ ^9 e* I1 ^" c(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:, v# a( }* G& m
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
0 E& r3 g4 q( Q4 |- _, l似IQ題=.=
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5 c' D1 i; c8 W  N[ 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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9 s& n1 q* v% `; ~% h1 D(x-x)= 0 ，所以答案係0，is it?

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: ^5 ^- v( j: w: bBingo~

waikong

我係學校個學生會單張見過& D" t4 V! m# t( x
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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2 I9 j1 K9 G) o: D: l* @1 E  z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 ]