| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎) O+ ^- D1 p* a* z) S0 w* ^4 d
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(x - a) = x - a
1 j7 v6 C+ |. L7 J  C$ X(x - a) (x - b) = x^2 – ax – bx + ab+ S( U2 E* b% W  H3 l
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
1 ]$ N' ?5 f! k" ~" @8 j(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd0 C) ^1 P3 |# j8 h1 B' W2 v( y
如此種推，
' h3 l3 Q3 S, H; A$ m1 d(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:! H4 H# Y5 y& @! Z6 a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc" m# C9 _, _, ^2 {! h' x

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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:
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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5 U, C5 N" P1 w* o) ]' {3 {8 qThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ ^1 ?2 R3 r+ I* ^9 p  n第一個答中有獎0 M% l0 y7 F0 F# Q+ S; d, m
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(x - ...

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% J, O2 I) P+ }1 A8 g(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:# r0 Y; D9 N+ X! I$ ^
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題; N* ^" b: b; B
似IQ題=.=
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3 {. k" Y0 Q% v3 \4 b* j' K[ 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 u6 r# Z- ~! O- {' ^$ R

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9 L; g7 J& ]& c  H2 b, b3 X(x-x)= 0 ，所以答案係0，is it?

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5 Q. @5 a% O1 L0 j0 O# q+ XBingo~

waikong

我係學校個學生會單張見過
2 P, p2 W  J* B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........., E- a7 F$ {+ E+ g2 M: X. K/ [
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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 ]