| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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  V' {7 `- Q  l! Y8 x) ]) N) M(x - a) = x - a2 k( x. w+ Y7 \$ F: n% e, J+ Y  I
(x - a) (x - b) = x^2 – ax – bx + ab
2 \# ~' y$ L. O8 O' f8 s(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc6 t. F  J' S# `6 o
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
+ D$ Q2 E% M1 h9 C% j& ~7 {如此種推，
9 Y" v- L' o4 T  b6 t' w9 h) d9 H(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! x4 c/ |2 K8 f2 b! x+ [

Originally posted by Triangel at 2007-4-18 01:26 PM:
# V6 ~: x2 P6 U; S9 x9 B) u(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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( E' s& _7 I3 C8 P* T3 Q( H, n[ 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:
# P9 O8 B5 z- O' e0 ]咁難既=.="
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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:- d+ ]1 R. d5 b; j% r  {7 G
第一個答中有獎6 a( a) ~# q3 i) c! x$ e
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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:: O7 \1 T8 e6 v7 a# S* f

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1 h" J5 ?1 q3 K0 n(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題& m' U3 B0 ]9 V. Q8 w! R
似IQ題=.=* S8 j0 T3 i- y8 V3 v# c
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[ 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:, L2 U- n9 x: y1 f+ W0 y  p
+ t2 g, ?2 A* ~& n0 ]- X

  B/ g1 z" e; g/ |6 i9 i. `/ ~. H(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+ ]* P% O4 f- J2 h
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4 e4 g9 X) P$ H3 h9 l/ y1 {0 W) v

5 w) D) e0 J) _  G; U0 _( q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]