| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎/ y# V/ i. `! I% O# x$ Z# f
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(x - a) = x - a
. B# w2 Q; u, V( _2 K8 G, L, e(x - a) (x - b) = x^2 – ax – bx + ab3 C2 M$ T& ~6 y8 {
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc- V" `- s" N- ~. O5 o/ }0 W2 ?
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 I2 o2 S5 x7 ?% x; t: [
如此種推，
0 ~$ w; z' j, g& Q+ i(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
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Originally posted by Triangel at 2007-4-18 01:26 PM:6 U6 I0 U' t) A. }$ q4 C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc. c6 r' n; p% k# H8 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:4 @. T3 Q5 X  {* A/ ^
咁難既=.="
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; v* Y6 @: W+ h+ J* J! W+ }; u. _[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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$ {! Y, S6 u& e3 r  z7 j3 oThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' q5 S% g9 D$ q5 w6 s' V第一個答中有獎' u3 S% g5 G  `- H
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(x - ...

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( y4 e3 }9 y4 @- Q4 Q0 q" R6 i: B(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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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
2 r. e& C( R7 p3 U+ C0 `% i似IQ題=.=
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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:
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: V. b$ X1 l3 O3 N7 R9 j0 f& I( U5 B7 ~$ e5 z( z- F0 r/ h. i
(x-x)= 0 ，所以答案係0，is it?

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6 P; O' n1 A' h% {' VBingo~

waikong

我係學校個學生會單張見過# S" d! N) @- |; X# s2 u
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.........! _  c9 e' a2 y! k, B

( Z' X, d% N  t! `! g' z這條問題，貼落吹水版，名副其實* {- ~  p, E0 G+ F, v% r, O5 d6 s; C0 ]

9 c# s8 k! x  l[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]