| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎' m) @3 `; N5 s' S3 `0 n. \

- l4 a, d' [7 @. ~# J(x - a) = x - a6 S4 K; A3 |# B
(x - a) (x - b) = x^2 – ax – bx + ab
$ T$ |5 G2 D! F1 Q" o* S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc& ~0 Q3 C$ A8 ]# o- E
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd! q" v5 L7 F. Y' U5 x
如此種推，
3 @' s* |7 v1 {$ m" C7 s(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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. L: g/ m2 R3 e8 L0 k/ _[ 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9 b* o$ r9 P& c9 E7 k& m

Originally posted by Triangel at 2007-4-18 01:26 PM:
5 ~% d8 }# k1 u; {4 Y) u(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:( H3 f8 M; O" Z2 {' j" y
咁難既=.="
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1 b- T2 y. P3 C5 ]* h* W[ 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:
0 f5 i: j  B4 O% b5 @  T0 L& l! O第一個答中有獎7 E+ j( ^* X" ^& Q
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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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% D0 W% c' b9 g
(x-x)= 0 ，所以答案係0，is it?

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. w, e3 y# q8 x% W& T# s) v/ }- }) @8 X' \1 O$ {
唔似a.math題  c9 r% m" D! k( ~7 @
似IQ題=.=
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% P0 G. t' p5 J; r6 ^' g[ 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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2 \' i! R$ i4 C0 c1 D, X% ]: K! X
(x-x)= 0 ，所以答案係0，is it?

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( u- ~' v5 h; E6 t: m( eBingo~

waikong

我係學校個學生會單張見過+ d7 d+ M; P7 A0 G( A7 s! C
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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# m( [1 y% P3 J: \這條問題，貼落吹水版，名副其實
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6 n% L9 }4 e8 Q7 _[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]