| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
% x9 h) n" b2 J5 a(x - a) (x - b) = x^2 – ax – bx + ab. E7 t2 F9 @" S# y# H8 C
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# e2 J* g  s9 E(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd4 J) i4 o% Y) {
如此種推，6 Q* s2 c7 Y- I! ]
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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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0 @$ v. C# y8 g% A, T* P; u) y

Originally posted by Triangel at 2007-4-18 01:26 PM:
, a# i0 n: Q- m. E" T* W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, P- V6 O& p, Q+ x
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9 X5 G% f6 @8 x2 W2 ?# {0 V[ 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:
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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+ K% t' n5 q$ L6 {9 g# }. ZThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:5 z. t& }5 K; q3 F) u$ o
第一個答中有獎
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/ B. r/ }5 m0 r8 b% A  ~(x - ...

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4 g. c: h5 v6 e9 u* k3 V; ?(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:1 _( N& l2 J, P8 Q4 B" r$ {" X

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(x-x)= 0 ，所以答案係0，is it?

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& ^, p3 r/ |$ q1 e唔似a.math題, l1 ?3 i* f; F( w4 t/ I& x
似IQ題=.=
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- W  L4 Y% i$ ^+ _9 L[ 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:6 w. t3 ?  k+ }. y5 l
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2 h" f  A! ]6 y3 n' t  f; H/ r(x-x)= 0 ，所以答案係0，is it?

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' l4 J) [; v# s; w# }7 j- ABingo~

waikong

我係學校個學生會單張見過( b: x1 S; l) M# G, k
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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! A7 v2 J. J: w9 H3 r% s7 f這條問題，貼落吹水版，名副其實# X) K2 _7 t0 Z( w8 `# h% L/ t

& ^  O) U% B, |( s; H[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]