| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
* `' c6 h' {4 }6 A3 C
. E, F7 J$ `& `(x - a) = x - a$ m9 ~" u6 K  B8 N' \1 m- e& j
(x - a) (x - b) = x^2 – ax – bx + ab
9 h7 x+ z2 Z& n- P* a* U( Y(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc4 c  M0 x# m2 f+ ~/ H# S
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
# X9 [4 j- \) K; W7 Z4 x如此種推，
' [, m9 h$ d8 Q6 w, C" _(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 D- c9 N" b' ^$ b' l' Y, I
" L8 }+ C3 A1 T% {/ z8 {
[ 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2 X) c: J; w8 @

Originally posted by Triangel at 2007-4-18 01:26 PM:
, u, D  J' n1 h(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% k4 D) k/ Z6 {& @+ h9 t5 }# r
' W: W8 ?* P& f" o  q, Z. d

( q+ M5 k: ~3 Y8 ~
% [* l) z9 e9 X6 {[ 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:) ~+ ^# x9 W6 x: T* y$ c3 b/ r' f
咁難既=.="/ z% k% M  f0 X/ j2 v1 G* \

  ]/ T5 t" H% L$ w3 R[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

7 p. d2 F% g$ N! |# @
3 P# Z# C/ _- WThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
# B' z8 N' u  T! Y" w" \7 z第一個答中有獎. \7 l4 E9 w6 M; u& u
0 j$ Y; g* E, x2 U: ^
(x - ...

6 J- F" N) y, ~1 ^
" M) h9 V  q4 N$ k(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
  |& d7 ]: p/ o; L+ A8 F" D( A2 Q' K9 A+ f2 U/ t5 E

* a. `# s0 M+ z(x-x)= 0 ，所以答案係0，is it?

- L# {$ R$ R8 Q2 G/ B  X5 b' X6 ^( j8 j5 H0 V( X
7 X8 V1 z# u; c0 [4 I" n( k
唔似a.math題
& V4 t* W. E. c4 \似IQ題=.=
4 V) u, W  _& b% {1 z3 @
3 U' \" I2 q  e. K[ 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( X" C: X! ]
4 R3 Y' f4 I# Y2 ^$ u* D. C2 p; _
- j" g4 K. _% x0 m$ B
(x-x)= 0 ，所以答案係0，is it?

8 t, k8 q! N6 v  l$ s
* s( M4 r$ Y0 ]( vBingo~

waikong

我係學校個學生會單張見過% E& _" |' Q) [
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.........8 W/ ^4 ~7 g$ v1 ]/ S6 R3 Z
* L1 C: ?# c4 F8 i% ~3 I
這條問題，貼落吹水版，名副其實
* j' y" f! G" d- G# i8 Q$ P4 a6 ]8 [0 v' m
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]