| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎' A3 P/ O1 Q& k3 o/ T
, J. N' T: ?. y; Q1 a
(x - a) = x - a) Q* z( x8 J3 i' Z
(x - a) (x - b) = x^2 – ax – bx + ab
, p' @$ K6 u9 R8 e3 K3 f(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc. h+ @! b/ h7 g$ S3 K7 W; |
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
* k0 |& n1 v/ I  J9 ], q如此種推，) z# m8 H9 d: @, F& h# s' t0 _
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???- R* I; W, a2 w+ a* K3 \, u  d# p- w
8 P8 G, D6 q" C4 B' B
[ 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7 K  {! I/ P0 }; q! C3 o

Originally posted by Triangel at 2007-4-18 01:26 PM:
4 s4 s" [8 i$ ], b+ z9 E(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc, E7 C. B5 f; n. Y5 Z6 G

2 ]7 f$ a' Y& i$ H; z# \( r0 T$ ]9 b) o

% B* X  ?2 n$ |8 S
3 T0 O6 L4 e# l$ U7 ~( o' k: K0 E[ 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:
  a) ~# {: n8 P. Q3 E( X咁難既=.="8 P5 N' d3 ~3 ^; Q
# ?6 _& e) r' I" B
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

1 G- I/ V) A* x, q$ X( q; W, ~; H, H! K" Q2 N- G7 \3 V2 m5 N
Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:9 v0 C+ T+ y+ K
第一個答中有獎
# F3 }& K2 {0 A8 b8 x8 E: j) C4 o% R9 `* x. U
(x - ...

, O5 k5 }9 E1 E- j+ Q: M- k- M* ]

* G, N* b7 J" m- h( c(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:. u% ~3 J1 \) m# a, J( h
; E! l/ a9 b) `4 ^- Q
1 w5 y% Q2 o$ ?8 ^3 o! R2 F
(x-x)= 0 ，所以答案係0，is it?

$ i/ D* B1 a# }8 o! B

* u/ ~8 _& V$ ^% M5 V* c
  U' e4 F; g: }' I唔似a.math題
  ]0 Z$ K, j5 o- ?似IQ題=.=' z9 p5 g+ w; V  D  t* ?7 d2 r

4 o9 L6 M2 K! ?  e% U1 K( A2 g[ 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:9 C8 w3 N+ l) f& H* j4 ?( p* }, t
) r, i3 s& Y; O( S, r

$ D* w) v; i0 b/ g2 A( c- c(x-x)= 0 ，所以答案係0，is it?

  k1 C7 L8 N- l0 \+ M

* b2 I# ]% n! ?Bingo~

waikong

我係學校個學生會單張見過
  e" N* p2 C/ O- N9 ^  Z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........." E0 O$ m% j5 x7 b
8 {2 ]) r) X4 t  G* V7 F( y7 W
這條問題，貼落吹水版，名副其實( n, ]) g) k. L1 N( k
7 m8 |: K1 i& [  x6 w3 @( N2 T6 x
[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]