| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎" C* a2 A, s. Z$ s5 e3 b

( }8 M& ]6 l, c1 H/ [' Z- U- q1 V5 o(x - a) = x - a
# x3 W0 l+ O  k& X3 ^- B7 Q5 n(x - a) (x - b) = x^2 – ax – bx + ab0 ?7 B: C* D3 O& O/ X
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc. F$ w6 N0 Q$ S5 O; Z! D( c' s
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd2 A7 r. f$ b7 f" f7 V. C) I4 M7 }* {
如此種推，4 G9 X- E+ L9 x7 T4 f
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???  B0 g& w8 ?1 T- N- d! j$ S' w0 d: H
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:
8 B: p- n: u: g& k) W6 F(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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) u/ R* M2 r$ i+ w& d[ 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:
2 ?1 L4 e  ]9 U. A咁難既=.="
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+ w. d/ i6 w. `7 L[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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* s% Q/ h" r$ D7 S0 oThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:, ?7 P( P0 J0 @0 j- Z5 }, g+ D
第一個答中有獎
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0 H3 o  K6 y, h& S/ l& f* C(x - ...

  [9 }0 T: D5 I
, S1 H+ S- D" w( ]7 @" ]. k9 u(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:% J, {. ~2 U5 ]* z# P( H- j
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
. X  I! E* _% U+ v" n1 y1 x5 G! \- t似IQ題=.=) I/ `( ]% {4 e* Z  Z  I
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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:, P- o* w/ i: o' ~, ~( u' Z' R

1 [9 y; {3 W4 g! C
# s% x6 [3 J( S+ U) w4 Q7 W(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
/ r* g; K) ]8 e4 s/ t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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7 Y1 v3 `; O. F) ~, e這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]