| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎# b; D9 T9 a0 {1 Z( y+ r$ q2 w8 [. c

& D* N4 Y; ?8 g  E9 _(x - a) = x - a/ T4 L! [- k3 c2 e3 N7 a. W
(x - a) (x - b) = x^2 – ax – bx + ab6 D9 a' z% }8 o9 g, M% ?3 I
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; l: A: h$ R1 Y' Y! f* H(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
( d/ O2 X9 x5 v* \9 O8 K如此種推，9 G" _! t$ E# c, I+ O
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???0 f- s2 Q- x' u4 V- K- P8 K
5 e/ z( R' \# J( _6 \1 @
[ 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 Y5 t$ o0 m) v: h

Originally posted by Triangel at 2007-4-18 01:26 PM:, y- ?7 J) s6 T
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
( v% Y: D0 |9 G, l2 _! L! k' c2 P# J# }4 g

; |6 o: q6 U' l# g* L. J0 ^+ Y: i6 E9 u
[ 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:
/ _; i6 c! D- \( I7 x8 v咁難既=.="
9 s9 c/ p. e. n" d1 v2 A1 I7 w2 x" _
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

" ~" c7 O0 ~$ F6 E( @8 x+ [# [% M4 g# D5 l1 _
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:3 S& J' H4 v# \+ E1 |+ W/ {
第一個答中有獎9 \9 U: f2 k( \

; o- ]+ W( l0 {. Q5 \+ S( l(x - ...

+ j3 }3 _# @% w5 Z& g
% x. T. @, d, N5 ]
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:8 k" R7 o$ W6 i# l. @% V

; A- ~* n6 N: O
; U  V9 Q7 e# X(x-x)= 0 ，所以答案係0，is it?

( f  \; X- o+ E! D4 K. b4 Q
: X" ?4 F  c; S/ H9 u: a5 X1 k5 f1 ~1 X" ?4 i* L2 z1 {& v
唔似a.math題0 R( ^0 V9 ~: O- {
似IQ題=.=0 _- |" ~) r) Y  ]
% ]; {7 P8 w8 h0 ~' l: j
[ 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:
+ e6 D7 @5 k3 C1 @$ [3 t' g  N! v* r6 L3 i# x) i
) a5 G- Z/ Z9 [, Q
(x-x)= 0 ，所以答案係0，is it?

4 Q) {% J3 W9 C6 Q
& h* Q+ t; {1 H& m. v
Bingo~

waikong

我係學校個學生會單張見過! |$ S  q% k. Z: `2 B5 g
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........./ o4 g* H8 J, C6 x; K

. {( s( B6 C0 y+ f7 O# i7 K$ M這條問題，貼落吹水版，名副其實
9 W, K8 A( S# [& c' W3 J, l4 I2 J) C! l8 n) r! o; _
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]