| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 k, @1 A- d0 w5 Z

- T- X+ f% x/ Q, u  w7 D3 t1 {(x - a) = x - a
* a6 D% \2 s; D. [" ^7 d: q' {) k(x - a) (x - b) = x^2 – ax – bx + ab
) F6 x: B* N- q" r(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc+ e  v. y1 l, A: b" g
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd8 T7 v3 b, i2 ]
如此種推，$ S. [1 M& \# V$ B" \* T
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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# M7 x6 u' |+ ~[ 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4 k3 ?9 N1 O: G6 i, ?7 M) A2 O

Originally posted by Triangel at 2007-4-18 01:26 PM:
8 a( x: }) T* p4 J; I& }7 @(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc0 y  {$ V' v' u" Q7 L. H7 A/ s

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$ [: `/ P- G1 a1 \% t# l. W# D[ 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:6 `! p" ]$ q# r5 w" b  F8 Q! m
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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% G! N+ J0 J! q' g* i* |Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
) u6 U) z* V5 Z8 R, \4 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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+ n: T& v& o1 e; t# S0 r9 I8 j0 G' T: q$ v
(x-x)= 0 ，所以答案係0，is it?

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. C, z5 `* }. F" S3 F' Y. M# L* S. [& e
唔似a.math題# {) Y6 _( r3 A9 _' b( j3 X9 t
似IQ題=.=8 ^8 Y3 Y4 _6 I7 \, 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:
* T! _# L( j+ m8 t2 z2 N# u  i* V1 N
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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
* n% P$ @! t3 U$ b6 K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.........  U. f2 @/ l+ W7 L( d6 v( C
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這條問題，貼落吹水版，名副其實$ @, y2 H5 B6 E/ W+ y0 I
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]