| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a( ~( W" l# l' Z/ L
(x - a) (x - b) = x^2 – ax – bx + ab+ q8 e9 W( |5 V# M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
! G) |6 R4 K! @7 o1 g$ Q  q(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; S) s2 q0 Z  t
如此種推，0 m( n6 R) R% P+ R$ ?
(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:
( D2 p; }& L7 R" x(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc  v$ E. m: o3 g- R+ F

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! c% v0 h, a5 ]6 g[ 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:
% F# G% E" P- C9 p( G4 `咁難既=.="8 B' B: c- U& x! o2 g% }

& K1 V4 |7 w7 @# I" W0 Y' O- s[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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7 f( G) D# b0 K( D" A% dThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
% d* n0 {$ l$ J" F, c第一個答中有獎
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+ @+ d1 N- L  o4 ~4 F(x - ...

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9 i: y" x6 c6 Y0 O(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:* H6 O' ^6 W5 ]" d5 S& `
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(x-x)= 0 ，所以答案係0，is it?

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' L, _5 `- f+ \" ~2 Y唔似a.math題' E9 P- P, ~. _% X( {, B
似IQ題=.=
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, X" i9 Z/ v6 A7 \7 d& \6 `  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:+ S# f: }& c4 c+ G4 }( G- J: K
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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# I7 K  J# V9 ]; |" X' L' \
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.......... d, F& ~8 g. i9 F+ r* y! E
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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 ]