| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
1 x0 @$ x0 L+ p9 A3 z6 e(x - a) (x - b) = x^2 – ax – bx + ab
2 l0 x& N) D2 I! a5 n( n(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
$ Z5 _& G* [) y. F# z(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd9 `1 G5 B/ r- v& ^
如此種推，- L; [/ v7 q3 v% q
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???* b" d: g" x& M: k' Q) e1 ~
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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* Z' Q$ p( `0 j4 h  k

Originally posted by Triangel at 2007-4-18 01:26 PM:
0 @* r' v+ B  D- I: {0 m(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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8 W- N" Y$ q. i[ 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:" b9 }# D! u% f4 g5 ]! p
咁難既=.="
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( y2 z5 V1 Z8 D! `) F[ 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:7 x$ x) ?9 r5 K; n
第一個答中有獎
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8 o$ U9 G- g& f/ x* d4 k  @(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:& @( ^4 J  U2 s
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( @- N1 s5 O3 J9 y7 \+ A(x-x)= 0 ，所以答案係0，is it?

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似IQ題=.=
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' T" v1 n3 C  y' U3 p$ {0 `, ~[ 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:" C8 H) n" `, q* O: [% M8 W3 G

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' y# ~5 |2 i  ~4 E8 a6 \(x-x)= 0 ，所以答案係0，is it?

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$ z/ P/ O. T6 ?. a- }8 P0 bBingo~

waikong

我係學校個學生會單張見過& i& g! Z1 h! o  j9 e6 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.........7 h" i9 H& j: ]3 @

6 E9 e0 X: x. A  H: |+ s這條問題，貼落吹水版，名副其實& k) C2 t9 ]) C; w
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]