| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎7 H. m# b' S" v" D

, P( T3 W5 b# f. Z! f(x - a) = x - a6 i% A& `2 Z5 x* k9 q% p
(x - a) (x - b) = x^2 – ax – bx + ab) u" _: d- P7 T6 k( G4 [/ z
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
) l5 Q1 W1 V- V# u# J3 C6 M(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd; n& k4 s5 t% k7 f; h- r
如此種推，
- D# Q2 s" n( U% m(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???% P/ S  [$ R+ v  ]) a
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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9 [, Y+ ^( l) |: E

Originally posted by Triangel at 2007-4-18 01:26 PM:! f2 I" K$ k" o0 ?) E' ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# m! p9 T: `* G0 m) y
3 m/ S; `: X4 Z- V: e) x7 r0 P% ?

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1 M5 x# u3 K1 L6 k( A, H9 j6 a[ 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:; X0 S" ]7 R. B9 x+ M: N% L: T
咁難既=.="/ \: h) s+ G$ D6 w& R. g" M
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[ 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:, X& N6 z6 }2 d8 }& j" Z+ K) Z
第一個答中有獎
8 z& A7 p4 c6 a! E
6 S& @  p' h$ l' ~# k(x - ...

8 r$ d' g) y- O1 I* A/ \1 S& i
# P7 b# F+ s, C: W: _! l(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
( S% O3 R! b3 ?
7 T7 a/ N1 F) d: ?: v" J
8 O2 z/ [* `( V/ R4 J. K" s( Z" K(x-x)= 0 ，所以答案係0，is it?

% {1 v1 n! s8 [- S* u) }- k

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& l; `# @; D, {7 \4 }唔似a.math題2 H5 q& [( U. D
似IQ題=.=
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+ D: @! G# n! T6 T[ 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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# \7 S  p+ e: ~& ~/ T7 c$ Y
(x-x)= 0 ，所以答案係0，is it?

& X$ ^3 _8 o+ ~$ ]
. _. o" y6 g" V, _6 n$ G  RBingo~

waikong

我係學校個學生會單張見過7 b9 I' S9 {! m/ z9 a2 m6 m' ~
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.........( ^9 y  r0 P! }( M
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這條問題，貼落吹水版，名副其實. p1 }+ P( b4 W

1 q9 w% K3 ?) J" `; ~! y# t[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]