| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a7 |) W  A8 O8 m& y) v# B
(x - a) (x - b) = x^2 – ax – bx + ab. k- n$ A1 R5 Z. L3 F6 T8 t" I! P
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
' U! y% _; q; P8 t* \' M+ ]5 S# r* {(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
+ P! g. X7 H2 w5 L0 ~+ t如此種推，
: m* P2 W# A, L" |' }(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???' A# f% c8 I2 z$ T

( j1 t0 x) Y# j+ c- {& L7 D[ 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
  m' U# I- _4 T. i& @1 Q/ C

Originally posted by Triangel at 2007-4-18 01:26 PM:
" j+ q9 S- v  [9 }7 M(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc0 d, T, @% f; O$ l" W
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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:* n: Q6 H5 d& {' j
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ w4 Q+ ^6 V6 I( D: O) TThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:* z) c9 T2 x% l( O7 W- Q
第一個答中有獎
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6 u  K, Y5 T1 X( d7 w7 t(x - ...

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, e3 J8 L; q. p$ 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:( Y; Y; J2 a: f. Y/ T

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題, S3 m6 O. g- H+ X& @5 w5 y
似IQ題=.=
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1 {, m- k' o9 {! J7 y[ 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 d: f+ o3 ]) ~2 J4 X/ }7 o# q
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/ {# S$ N$ I4 M5 R* G6 a7 d(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  Q1 @) _+ \% c5 K6 S, j
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.........# m& w2 D% l) [+ D0 T/ h# b
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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 ]