| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎4 H0 s! z5 K. H
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(x - a) = x - a
) t  |+ e( h* j  h; Z(x - a) (x - b) = x^2 – ax – bx + ab
4 F$ ?/ t/ N6 C: u  [- L. N# g(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc% l; j( Z. Q  ^7 f2 s" c& X& W& ~
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
: u4 H' T" L" G如此種推，
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4 X! b3 |$ B2 i9 {' n& K3 u" a[ 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:7 A6 P# f  J: u: o
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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- L9 R; S3 J5 t) S% N$ t2 r[ 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 V" H7 q7 _- V& u0 ^咁難既=.="! p2 Q5 i& m; u; Z. x
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[ 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:1 X' ?, h2 `( |, M6 t9 A# k
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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(x-x)= 0 ，所以答案係0，is it?

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/ h3 H( u5 I0 o, \: A3 {唔似a.math題6 {4 Z! V% a4 s2 {7 e
似IQ題=.=; J% c( b: N( j
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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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5 e! s  n8 R9 h8 c(x-x)= 0 ，所以答案係0，is it?

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. h1 Y5 D$ L6 V& o2 a  UBingo~

waikong

我係學校個學生會單張見過# V2 Z; J/ D' I, q- p
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.........  `, [; H# i0 E3 i9 R+ b, D. T, K; z1 T
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這條問題，貼落吹水版，名副其實2 `1 A8 D, m) m3 z- Z; e, C* i

# z0 A. k2 l0 @' T' h( N[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]