| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎+ _) b3 N$ R; p/ p* v

% z/ F! Y' m5 V- C1 N8 w(x - a) = x - a
  m1 g) s$ l/ s(x - a) (x - b) = x^2 – ax – bx + ab
1 i; i. @: c+ P+ `! h! q; W(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8 b  n; D+ x  G" {$ h! a$ U
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
# R, O3 {5 W) i, w如此種推，
# ]4 A2 Y6 ]/ n! l! ]7 |( |( R4 H: I(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???+ Y$ U7 A# g% x4 f2 \- j1 u

4 d. ]* V" @" x- f[ 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:; {6 {( o* x+ G- a  J6 X# O. k
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:
# c5 J9 `3 H1 ?- V* P; _& A咁難既=.="7 [9 n! x4 l" _1 J9 s8 |# ~

2 Z) F& z* k0 y0 p/ F: n3 R+ O/ Z+ T[ 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:
# a* i9 u: ~6 z0 h0 {第一個答中有獎, X6 u/ _6 @7 l2 ]

4 ~6 o$ R" H6 @1 p$ _+ B3 N(x - ...

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- O9 S+ l, D$ v! p! v) D$ k7 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:# a& o1 D! y' ]0 h9 Y

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1 y& a+ w$ S. A(x-x)= 0 ，所以答案係0，is it?

  d6 l' z, \9 z7 {1 r5 C! x6 C. _( z2 \
7 |% I, ]' y9 H; x, L8 D2 |
唔似a.math題
* d6 h) V* h, b' {: L似IQ題=.=& U2 I. \4 C( ~% k: `4 Z$ W9 D0 ]
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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:
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  l1 K$ Z4 x& J* d; n/ m  V  c
(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" }9 j0 s8 }6 [' r
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.........) W4 |& j# a* N5 S  x- g- C

+ ~" R" g: N- \7 I6 M6 s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 ]