| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎: K6 Y' N1 Y' d$ l$ G# V* t

3 h2 m6 b+ L: R0 W(x - a) = x - a
7 a$ {; `5 Z# c(x - a) (x - b) = x^2 – ax – bx + ab
% a4 L4 @/ x" \' @5 }' Y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
& M) i" v& A, C(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
' v  z1 G  N8 _/ D( R) K+ W如此種推，9 g( ^, S: s0 n4 b. @2 z+ J
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
/ Q  J5 I& U' h: b- Y/ c9 o: @8 ^5 o4 r
[ 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
# \  b6 E3 P- X  e

Originally posted by Triangel at 2007-4-18 01:26 PM:& R5 J9 A4 H% m+ I9 ^: t
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
: I) P7 m# @, Y: H3 H2 }( }% G0 w
9 V; i4 E# b" F8 I

- ^, y+ D; S0 ?. P2 C# K( g
! }: ]3 Z# x. v4 s9 ]& x7 K[ 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:6 g" f' `: g* t% A( \
咁難既=.="" C0 N, e  Q4 R* M- a* t$ r3 q

% C  k3 L5 K3 Y[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

! R; l( V+ \% r4 S3 r  P
8 ?9 \. T) y( A9 L5 EThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
! U4 C: m) G2 s( W第一個答中有獎
1 }0 k, j$ m) L. h. D2 T, M/ `8 G8 I  u$ G, `
(x - ...

7 u  t3 W- V7 V0 X- O* ?( Z9 w' v/ E5 R7 E: a8 q
(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
% S9 E6 K6 g: J) \+ A2 s  Z" i3 c% d1 q
, e2 }6 j9 |( G8 Q# Q) ?* ?
(x-x)= 0 ，所以答案係0，is it?

! d: F* h5 b' E5 g/ |$ g1 f. F! x
+ t: y$ U) O! e/ {0 a% a

/ d0 w1 I. W* [唔似a.math題$ i4 e0 V; Z* R$ A
似IQ題=.=
9 q5 \8 z# O/ j: V
- v/ B, s; v9 j) Q) `% \[ 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:
+ h. A3 c) a: e9 P0 E
/ ^. N0 g: U' n5 ]) S1 s6 E: M' o) y) \( l( {
(x-x)= 0 ，所以答案係0，is it?

/ Q! }' m% h/ y6 n4 e& A" O' F8 u( r5 K" t
Bingo~

waikong

我係學校個學生會單張見過
1 Z& \' G& t0 B$ F6 V4 F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.........$ G* ?$ h# K; `9 |3 {2 B0 c
6 L: u+ z1 w. v! r$ G
這條問題，貼落吹水版，名副其實- t7 \# Z$ ?/ }2 ~  _
4 p) }% G$ G/ [% z) L" ~
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]