| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 D( m8 }; ~+ L1 y+ P3 l2 Q

* j8 M/ D: _" {; i# R(x - a) = x - a
1 y: [' v# v" O3 v% [. e) r% r(x - a) (x - b) = x^2 – ax – bx + ab
: J0 G  ~& Q# v$ j! g6 C(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
: h# U1 a$ S3 T(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
" }* o2 _& r( \$ h; u, M如此種推，
  s4 L& f$ q% M3 f(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???$ O+ k( M* h9 B0 a

" s4 d, ~' B2 i7 N# t. J7 H4 z[ 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:' l$ N6 z) Q9 l8 }$ w5 H% s+ v* @
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
+ e* B/ `4 g. I0 K0 E! D' S- y
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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:1 ^$ c6 T1 }0 v- y
咁難既=.=": c1 F) u+ Y5 a0 s  o0 ~
# ^3 J* c5 n- w6 e! T1 H7 {
[ 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:
- P5 Q0 }2 O7 d: ?, W  U: J, U第一個答中有獎2 t- ?- y7 ^- e" `5 g

1 \9 `1 Q# F( t. e  U" n(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:
  \- z: h( R; k! O0 W# }/ b" l8 M

- u9 v; t* m# V(x-x)= 0 ，所以答案係0，is it?

3 Z- p, V+ f9 j3 a. U* W0 \

# H1 C' a* |" D5 L& e6 M* I/ \- t' E! D# n% L! e
唔似a.math題
6 A' Y- c& ?+ F. C2 [0 V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:
* B! b' w/ x1 H# h7 L
6 Q1 i' c# r7 l+ }1 W  X, u+ N: h4 \
(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/ D8 y) i% _8 F8 }8 Z
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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$ a+ v  Q) \* ~這條問題，貼落吹水版，名副其實( r) \  T3 d: P0 |

, [; x$ ]8 f, _8 f5 n: {[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]