| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎- r! \1 ^+ K' e# o+ m2 V

. m) J0 f, D2 `/ H; R5 I0 z(x - a) = x - a
6 {7 M- I  d2 W! z(x - a) (x - b) = x^2 – ax – bx + ab. a: f3 y; J: ^; X8 N$ J/ ]
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
6 I4 I  B+ o2 r. l; d1 }6 l: g(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
/ }9 g0 k# P* W: e' o, {6 E9 |5 U如此種推，
" p* V3 w8 `  E* d+ ]1 O( r(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 }/ i: R" X! P% R7 Q; S

0 \8 z7 H  l. e8 O4 A[ 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$ w$ x: \! _8 n$ m5 M
(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:
$ u' ^; V9 Y. X. j2 E  }咁難既=.="
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2 _" D. B* o7 p( L# P7 o1 K+ k[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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3 c' R8 e, f, P/ B6 |( S8 H% |% gThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
( Z) t8 `. S( F第一個答中有獎
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% p2 x0 h. o, g% ?+ t( Y) A% W(x - ...

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" o3 e  O; Q( M(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:2 a2 I6 L4 i  t: k# D' q
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
2 R6 ?2 L' Y1 l" J7 @2 u似IQ題=.=9 y+ Z/ I9 [. P# F3 N

# k8 m2 M% A, X2 `5 W+ e/ U[ 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:8 {4 j: G/ [& N

- ~  _: n; q- n! n3 ?
& r$ r  i. E- s" ]  x(x-x)= 0 ，所以答案係0，is it?

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3 }; e, n  e5 f. L+ Y/ I5 T: T2 m- dBingo~

waikong

我係學校個學生會單張見過
6 J  c% R6 `& I8 c/ K4 ?1 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.........# ~; K% }1 m$ ~" M& y. [9 G. _- m
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這條問題，貼落吹水版，名副其實
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- i8 q+ Q/ T2 q[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]