| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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$ R3 d5 P0 G- W7 J(x - a) = x - a' l7 }5 H2 `  X8 W9 U( x- s
(x - a) (x - b) = x^2 – ax – bx + ab1 v: @, i3 }  |7 @
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc$ _6 ]1 `; R5 k6 b4 ~' I
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
2 `$ o; ^* {5 M0 R如此種推，
7 o  F8 m* W9 _+ 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3 y7 ~& Y. a5 P2 g# a+ L# e

Originally posted by Triangel at 2007-4-18 01:26 PM:
8 @+ s3 p& H4 z8 E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc9 m4 D. I4 b3 g5 ?6 z' D; y9 _
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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:8 ?" K" ^2 Y" _1 w; o- F
咁難既=.="$ r# ^* ^5 _! m- ]+ e1 R

4 ?- o0 x9 ]- ^8 o[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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, L; S+ c0 `! R1 e4 _) LThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
' l# M  g! x1 s  z. [; O3 Q第一個答中有獎
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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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5 U( A: }: s: r(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題" y) Z+ T6 f- a6 ]# G8 p
似IQ題=.=: u/ E0 Z# c3 s, N+ f& x
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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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(x-x)= 0 ，所以答案係0，is it?

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) b8 y5 Z0 ~5 a1 S0 n- X6 K3 R( JBingo~

waikong

我係學校個學生會單張見過
, A  g2 y' M" M4 d* V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.........+ M! i1 b; ?6 f7 l! K) u: ^7 x, v  u  o
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這條問題，貼落吹水版，名副其實
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0 r) W7 X% c' P7 j' [+ Z. M[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]