| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎9 K% z( `, @+ Z3 k2 R0 F3 ?
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(x - a) = x - a7 V9 ?! U: l# q
(x - a) (x - b) = x^2 – ax – bx + ab# m: z. C0 N, q& a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
9 J, \0 b' V5 j$ t3 U(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
! s8 w& G, v% Y* d( P+ t' s如此種推，* B; h/ Y" c6 Q) m7 a/ c
(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:( T  Z- w- e4 l  ~5 U1 w1 c/ {, r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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$ A! T( V- m/ w2 s1 p[ 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:. I( v; V/ C+ t& M5 _
咁難既=.="
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$ e& H# Y/ _; u( Z; a" p[ 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:/ j  l+ \' a% p
第一個答中有獎
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: l4 |  ]: q' E/ i! J& O! c' m(x - ...

# s' F1 o8 E7 R

2 v& y4 `9 P9 |7 F(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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5 N# Z. x7 u" T5 C唔似a.math題
5 S1 w1 z5 M. }似IQ題=.=8 f3 `$ O3 ]. y  ~
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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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(x-x)= 0 ，所以答案係0，is it?

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waikong

我係學校個學生會單張見過
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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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$ M4 t2 H$ L- ]- T. v這條問題，貼落吹水版，名副其實
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6 Z0 P& w. y  L& k[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]