| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
+ [2 n( c3 {# h* _- _# Y# J; Q! A(x - a) (x - b) = x^2 – ax – bx + ab! \# |6 s2 ]* {2 s' R, D: c
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc7 U" u0 d. a/ z7 L. L. [
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
0 S! g7 l! @/ d9 I* E" [8 w如此種推，
+ N/ q: T2 N8 b, g7 D(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???. ^$ v; R- V+ i7 K
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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:( {' z4 _7 ], o" x& ?, @' ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc  P0 Y% s6 }1 ?4 w

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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:$ p0 m0 U" H+ y, w3 U+ o5 W% }
咁難既=.="
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! |$ d" Y3 n- b2 x/ i/ D[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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. {3 D7 [; X* z. \Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:2 D8 ]( s# o# M6 t( c9 X
第一個答中有獎. d4 n: X+ P1 M" _3 N* F
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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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唔似a.math題
) |! I! ]6 u5 x" i似IQ題=.=
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0 ^7 i* l1 x% |0 N" X, R1 |9 O[ 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:: h3 j+ w3 m+ {; P

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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/ G/ q8 a, Z. ~6 E/ p, m
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" }% r" N" ~$ }" s6 m' [
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]