| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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8 T0 `" n/ z0 @4 L% _1 n! a(x - a) = x - a  f% n! y; }8 E* Z+ g
(x - a) (x - b) = x^2 – ax – bx + ab5 M: r: Y9 _- I2 b
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc+ I) j# U  W. O( l* @3 @& O' I
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
5 G! N1 L' y$ _2 a5 w2 z8 m0 W如此種推，* f( \6 ?2 N' G) z
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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1 ^6 ^7 m) s  ?[ 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:! P, |7 p/ ]$ B8 h
(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:
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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9 k" o6 Z: _: D5 _5 @! _& XThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:* O% h) O; W& e& d
第一個答中有獎
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(x - ...

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& j' w9 M5 j9 o. v: D(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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/ K7 |! s. ]) o. [. F/ V3 Z(x-x)= 0 ，所以答案係0，is it?

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4 O* C. Z7 m5 j* w唔似a.math題- |6 a) A" m* D9 v" c7 |; X
似IQ題=.=( c/ Y$ c6 W% A; ]" u1 e$ D$ @
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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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& Y* A2 z4 Q8 M6 P1 m5 G(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  D1 B* W0 C1 }& Z$ @$ ~
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.........( H4 z3 X" C& H2 K, i
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這條問題，貼落吹水版，名副其實) y; @6 B2 [$ {* \3 _
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]