| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a
( q3 o$ S( T( N: a2 l$ M(x - a) (x - b) = x^2 – ax – bx + ab% d$ m+ S7 `! K; W% `
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
4 I+ M6 c0 B  r2 b(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd& F! L- t- m0 k; Q* g5 W" f
如此種推，
: B) K6 ?0 ^  _1 h9 x% y(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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: \4 \/ V' o2 U3 d$ R: G' A8 Y[ 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:+ [+ O/ V6 {  W6 \
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: U+ s5 Z0 V! d: v

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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:
8 ?+ [) Z* A- W" z0 K咁難既=.="% Y) U8 u  H* ~/ M# _1 l& `

0 H% `+ P+ l6 Y[ 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:
$ K' m8 O5 \6 V% ^0 a- I  V9 q" n第一個答中有獎/ p+ P& d; m+ R0 o/ a- T
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(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:, l& W' V) ~" Q

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8 J5 z" g) G$ A& K(x-x)= 0 ，所以答案係0，is it?

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8 w5 M( Y, s% m/ l4 v. Q& j" M唔似a.math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:
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(x-x)= 0 ，所以答案係0，is it?

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" C  W$ u" W' D$ a+ D! R5 i1 RBingo~

waikong

我係學校個學生會單張見過
1 A) b  q. ~# \# G0 }' o( _6 @3 i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.........& ?3 Z0 s. g0 M

( s  [7 r3 V4 l+ \5 q0 s這條問題，貼落吹水版，名副其實1 P% D# f8 M1 V6 Q' a

7 v/ W# c. `% ^  J[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]