| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎. Q/ I" ?, x# [0 v) X8 z

; s, e( O0 z* G/ T; w( b9 j, b(x - a) = x - a7 W! J$ l8 q' e" T9 x1 @. |5 |
(x - a) (x - b) = x^2 – ax – bx + ab
& [+ T- a! a! o% F( w, ]' C(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
; j9 E2 U' L# C3 [* ](x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
/ [" x1 H; _0 s- \' G1 D! N/ E1 R如此種推，
4 v" K) p* H) F7 e: C# v(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
5 B3 s- q/ f/ o0 {
& T. ], M% h1 `" \% g[ 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, J& X- F2 ~; [1 e$ A

Originally posted by Triangel at 2007-4-18 01:26 PM:
& e3 i/ r; v. D' q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
, w( k& j; d. d7 b/ }
! x4 E* F/ Z( i  l

4 }( ?) u8 v' ~# a6 T% c2 M$ Z

3 C. S) V, x  f. y6 U% M3 c3 \  s[ 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:
  U# ~! P8 r, g4 A/ `5 w2 A3 X咁難既=.="; _' j3 c: |4 c9 F
  r0 f4 }7 [. C* {
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

1 o7 Y0 M* D2 u" ]
1 m4 \  `1 t& u+ ]0 c  `8 t' s1 x+ n* HThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:" O; G' O1 l/ x0 I+ i, `
第一個答中有獎
/ ~; v1 ?# d7 q2 V5 }  D' D3 j: |& E" h: r. L
(x - ...

8 u# S* o; I- Z* A
# [% |5 N# q' S: L3 ~0 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:
2 k! Q0 I- y' _0 d8 D
+ V" H7 a' G, F8 ]
1 h/ u, ?3 l4 ~  E(x-x)= 0 ，所以答案係0，is it?

. ?6 F' |$ B5 f0 {8 L2 r+ j4 n4 }" Q4 ?( R2 p

# ]5 y  A% S% }- ]" b: @# S/ z唔似a.math題7 L  N$ p  |" q) D2 I& `- u
似IQ題=.=- ?3 y5 z0 r9 E# T- _" l

& l3 \/ P" G# e0 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:/ S' d5 x1 o  H0 Z. p  h- R7 q
: }& d9 p+ M4 j8 K4 ^
  N8 R. u% w6 |1 m
(x-x)= 0 ，所以答案係0，is it?

( p: q7 `6 z0 x/ N" y$ [% G. R, R1 ?

. @- t2 ~# c, y9 O1 J8 b  _Bingo~

waikong

我係學校個學生會單張見過
" F& l2 }7 f! d4 S6 ]  j4 H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.........
% t, ^1 \5 Z- o/ G
1 D: C9 q6 H' q9 T; h) h9 W/ A這條問題，貼落吹水版，名副其實
' C- f  [7 @) |0 b8 e4 C: G/ ^& p+ X- e* ~3 N; ~& s
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]