| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a8 x" u/ g( r7 j' I: T  Q* ~
(x - a) (x - b) = x^2 – ax – bx + ab8 ^- i) w: [, u, C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
7 W" T: |9 C, _( D0 c(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd" C0 g0 Z8 P. [: D0 K2 u
如此種推，
# \) Y8 K' H* {2 ?  E3 E: M$ H6 j(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:
2 D8 x* m( O: v(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
( u2 x+ x0 U6 }; \( _# _' c
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) p3 m9 t+ p, D0 o[ 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:; J& ^  t0 y) o$ }3 B5 G7 J
咁難既=.="
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* o( G" m" t+ S[ 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:/ ?2 A) O3 |* X$ E1 t
第一個答中有獎/ `  t! ~. ?! Y* \7 |0 e

2 J" e: @- i. g(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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題/ u8 e* p* W  E2 Y7 G
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:5 U. }6 E; ]) W

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+ e# t) d) w4 r/ D5 V(x-x)= 0 ，所以答案係0，is it?

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$ w; \2 U2 I$ K0 b% [, R. z& z: MBingo~

waikong

我係學校個學生會單張見過3 I8 j/ ]8 w) Q1 o! ^# B* Z) P) E
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.........2 _% M( i& C  L8 U
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這條問題，貼落吹水版，名副其實6 w. U5 l' L, c1 v2 g2 G) d9 G# @

; O6 n: J, S& s[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]