| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎, q# H+ k7 J' d1 e8 j

4 n  C0 [' z2 Z' K, S% T/ W$ f(x - a) = x - a- ?( r# o$ }7 ]0 t. V/ w7 [
(x - a) (x - b) = x^2 – ax – bx + ab
  f2 E* B4 [; o8 z6 ~(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc; q" Y% D: m& v, i) u6 E
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7 l+ l) ?6 b! E8 d, `& N
如此種推，
* G2 a( }+ C/ O, s9 ?+ |(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 c' m5 M$ e8 n$ z

& j' A2 \9 f- r  a5 _7 S' k[ 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:
9 x$ M2 c& }: H3 l(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% ~/ F- M! ^1 J3 q: f+ ^+ V  J

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/ u: i* @1 d6 _9 f6 k[ 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:
8 A4 Q( O3 n1 h0 ~8 C7 e1 d$ v咁難既=.="
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[ 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:9 U0 j( p3 u! Q5 V; m) r1 p
第一個答中有獎9 k' a) @0 F8 e4 A8 g) g' c5 J

; M( J6 v7 v) y! z(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:
( n9 e: F  z9 E2 n& B" O& i* m& V2 `) _6 S/ p

; ]- k) C0 T+ v) s* W' ^(x-x)= 0 ，所以答案係0，is it?

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# N. [8 I" J! N* @唔似a.math題
/ ~7 t7 i$ e9 o+ _, g似IQ題=.=5 v  O! ?- N2 u  |4 W% F2 b

* z+ z/ J5 y5 r( U4 I( @- f: J[ 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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2 m5 F4 c' v, F  c* A* I( y+ q, \% _6 m( R  u
(x-x)= 0 ，所以答案係0，is it?

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' v2 U; A$ B$ g# q, r8 t- OBingo~

waikong

我係學校個學生會單張見過* q4 e: n4 b4 B  k# \6 T
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........./ |0 y# T/ t1 h% x# i3 i
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這條問題，貼落吹水版，名副其實" u2 X. c6 Q* u% c9 T) k4 J

8 X. e) U9 O" Z. P  \% ^  I[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]