| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 M' C4 J0 t8 |: H% Q9 B
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(x - a) = x - a0 y2 z% n+ b& e$ G2 N. a/ a
(x - a) (x - b) = x^2 – ax – bx + ab( K9 O( U  |( I: f' B
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: B6 U+ Y  E5 J: O+ _(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. N& C! Y* Y5 ~  f如此種推，
9 B& b+ Z# ]. g( E2 T' c" w) e(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???* x; o) x! l6 U+ W

' X9 }8 [' _9 q" v0 g5 e8 g0 R[ 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! [$ r. O5 }! W- P7 Q; o1 f

Originally posted by Triangel at 2007-4-18 01:26 PM:) g8 F' k* M. M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc& p' P7 t( r* z* u' ^
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0 R8 A0 h" B' i5 N# v1 [3 p[ 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 o; u  m' ^1 {) y1 G) a' P
咁難既=.="
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9 X' O2 ?( s6 `; r9 ?2 R[ 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:
6 z& \6 O% Z) p# ?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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! ]3 j2 l- k9 f* x0 a% I! F! o$ s(x-x)= 0 ，所以答案係0，is it?

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, g1 T: D$ m+ T; v! c+ ~& z唔似a.math題
) j9 t0 O) X, u2 k似IQ題=.=8 }' H6 |% ]. N. N

/ y) ]& J9 w$ @3 l1 Y[ 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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0 h6 @, g0 _5 y
(x-x)= 0 ，所以答案係0，is it?

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" K  Z& F, a( H# }Bingo~

waikong

我係學校個學生會單張見過# Y# p* f& s% U1 E* Z* U
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.........( b% M  E6 n( l# ^" B2 a0 d. I: t

- O- b* v3 q# V. [1 X# ~3 `/ U這條問題，貼落吹水版，名副其實/ F: u2 k% r" m: [2 J) X6 y
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]