| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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$ c! O5 I  H3 m9 A. I" f. M3 @(x - a) = x - a
; ]/ S2 N/ M) ~; {% A. @(x - a) (x - b) = x^2 – ax – bx + ab
5 i; w. h+ i3 d! ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc9 W  z* w, t& A4 n* s
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd6 e" w* G8 @* ]$ ~2 D: ?
如此種推，4 h. y* G% u5 T
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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* ^1 L, c4 R8 x' Y7 c[ 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2 a% a- ?5 B! [. H* D2 w- I

Originally posted by Triangel at 2007-4-18 01:26 PM:/ n7 p; @4 @; B/ @1 V
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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5 x* P, Z/ ~2 V) p' N[ 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:) H" m# n- t+ X
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:
) A6 K! D" ?" M第一個答中有獎( Y7 f3 O. X' v8 E
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(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:
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(x-x)= 0 ，所以答案係0，is it?

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, m( S9 z5 t$ x2 ?% ]1 k2 I# r1 a唔似a.math題$ n6 @6 U' p/ B
似IQ題=.=, g  J3 k+ E! |7 b* D( w

' i/ t, _" b/ c8 s[ 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:2 Z( h; G% \" a& @1 b- E( S

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" ~1 d% n9 E! h/ n& |$ q1 h/ A(x-x)= 0 ，所以答案係0，is it?

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8 K2 d2 G8 s+ OBingo~

waikong

我係學校個學生會單張見過' B; q4 l  F9 _( }9 h# ~
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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這條問題，貼落吹水版，名副其實
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! v( e* K# b3 a. j[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]