| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a& J, L9 Y9 v8 S, G1 z6 f/ }! o
(x - a) (x - b) = x^2 – ax – bx + ab
, Q5 z3 b" n8 W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc6 C! F+ _6 j: U5 \; B( M
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7 b8 U$ ]$ ]6 M6 w  d4 s9 F( a
如此種推，
0 }( G5 _5 X. L+ Q4 ?/ h(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???& T. c2 I. W8 t: K. r
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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# U6 k- z) a1 T3 x/ g# n+ }( h# J% b$ h

Originally posted by Triangel at 2007-4-18 01:26 PM:
0 u; t) }1 R$ f* o* j! [" ^. q3 [0 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:  o  q: ^6 ]" Q/ I/ x& N
咁難既=.="5 @5 x4 @% ]5 i" W
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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:. U$ N0 t& C6 N6 }8 I
第一個答中有獎5 n) Y! E" j. {4 O1 ~

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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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3 H6 V% U  F* }) A! s/ A# I) J3 x6 N(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題8 W0 r; H5 r9 }% g0 K1 O
似IQ題=.=
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; W) l7 B2 a9 z: a5 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:: }4 c7 g, P$ F  L1 c, |& ]/ [1 |

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(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7 q: M! ~$ `5 ~- o" L9 Z, I
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.........
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$ J3 o0 r3 n" a# W* U這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]