| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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1 N/ @& ?4 \, y: D! i3 C& d(x - a) = x - a
* |) w0 _; ?* `, X/ d3 \(x - a) (x - b) = x^2 – ax – bx + ab
: m# X; Q2 \/ ]( \+ s(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc  \. V1 {% H) P4 l
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd+ }8 w  m- d  G8 R
如此種推，1 N! T, D8 n5 S; t, i+ R1 x
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???* i( D, `. t! E+ P; C8 N. w
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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:" D$ L9 a  i! R) ~. Z
(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:$ b1 I. T4 C( o, x
咁難既=.="1 R! A0 n  J! Q' u# q
+ p% C; y8 \$ x
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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. B3 ^$ j" Q  P. a7 L8 m1 d# d2 YThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
0 ^  z' ~8 b! `% ?9 i# @第一個答中有獎/ [6 |( `) s3 v3 c7 w% H

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/ t. @/ |6 [' K( }9 l/ 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:2 q# U: [5 o1 |0 `0 W9 [3 ~
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(x-x)= 0 ，所以答案係0，is it?

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8 c. ~3 q' V9 S5 R) P/ ?: u8 A4 c唔似a.math題
  i: X8 S7 F/ d似IQ題=.=/ n3 K3 R3 p+ L- `* V
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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:4 H& ~3 B+ `# w4 W; y3 ~  W

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7 L7 j( j2 Z' l(x-x)= 0 ，所以答案係0，is it?

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( ^$ B3 x+ g. `- XBingo~

waikong

我係學校個學生會單張見過+ f) _! q; |$ U5 Q) D4 U9 r) R) ?
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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- ?* n% z1 r1 ], V這條問題，貼落吹水版，名副其實, `! k; P8 X5 g4 c3 Z! q5 u: z
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]