| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
  I4 G1 K, ^9 R) I(x - a) (x - b) = x^2 – ax – bx + ab% a+ A9 e. G. f4 c8 H' x
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc, C$ o& p9 l. j+ R5 e
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7 c  J. S9 f* t- c6 q
如此種推，; H4 ?  ?1 E0 |2 ]
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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: u( d4 \; O( C+ g' Y5 O! G[ 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:
  W, V' e& ]  Z$ B(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc8 W& H  C2 i  K  z

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, b/ A5 S0 V  ], Y3 o+ i% ]; C[ 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:
+ C$ ?" E$ x3 W. K1 h0 O% B! i/ C1 c咁難既=.="" c* y1 a" v# j9 c* `. h
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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:$ ~1 \6 e: [  Z. d( d8 ?# M
第一個答中有獎
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(x - ...

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3 l% v+ F3 j8 F3 ~8 t7 `  g; h(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8 `* K5 G, u" U* C
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:
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0 ]* k( l1 X/ e, ]. H6 k(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
' K/ I/ t+ {3 J6 g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........./ Q+ e* a  z* Y& F3 N* _

" m6 J7 G1 [$ K9 j這條問題，貼落吹水版，名副其實; h, {5 j" M" o' ]. o) E& x9 p

; R* \; n: u, b" T6 i; I$ ]" F[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]