| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
4 x' X/ ~3 R- {; ?* T5 ^(x - a) (x - b) = x^2 – ax – bx + ab
+ R" s/ O9 W' m8 Q6 B3 {0 N(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc3 k* H7 P% _6 X" k4 I
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
. a2 }; F/ l9 Y9 d, t1 ?# A如此種推，
  c& C9 B+ u: e5 n2 y! c4 _' \(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???# q  a, k# h' a/ w
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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:. m" ]0 a6 ^9 `; }; M
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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9 `/ P9 w! k, N6 {- `; u+ b[ 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:, T# {& G0 j& D' I* {8 m  M
咁難既=.="- A* P$ A( k, }/ g$ g3 {8 ]
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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2 O9 w# o8 L1 N1 qThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
( D3 X1 J% M3 e( X. H& m( h5 [1 p第一個答中有獎. w/ n' G+ k* w4 k% {! p1 X

3 J) E$ m* z/ L0 t0 e1 y(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:" O) q, a. S( @! J+ [1 X

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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
1 ?6 i6 l. M0 D$ n; g似IQ題=.=
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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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(x-x)= 0 ，所以答案係0，is it?

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4 l0 X5 v2 a* D( `, _Bingo~

waikong

我係學校個學生會單張見過
* F2 E0 @0 J' ~2 ~; `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: v2 P; a0 E7 b5 ~# J
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這條問題，貼落吹水版，名副其實
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2 z, O% M" L7 U8 ?' V) Y$ u[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]