| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎1 Y0 P) e+ l9 `1 W4 z, v/ E3 N

+ f4 ~- k# X, u% |$ n6 i(x - a) = x - a
  q# L" _& r% s( o$ S: \3 D(x - a) (x - b) = x^2 – ax – bx + ab- J7 Z6 Z' A- T. X# b8 n% v3 b" _7 v
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
4 Q. `4 `2 X8 O, f* [# e# I4 Q(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
, @, p) b- e6 y  O7 O如此種推，% _  N+ h' ~* @2 z3 n7 }8 m& x
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ 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( S1 M. L' Q& [4 I! H7 o) P

Originally posted by Triangel at 2007-4-18 01:26 PM:
7 _# q  I4 P9 Z/ n1 l: ~4 [(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc% o, a1 G( ^$ u8 H7 f5 r

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[ 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:9 \* _) D( Z# t0 w
咁難既=.="
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  @7 Z" g5 f' G& R" c[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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& P6 x; r' @/ b4 L* b2 ?Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:3 e, E  R2 {$ n; L9 u
第一個答中有獎6 P2 s* v1 J' M9 m

3 v* ~% r, {. y$ t, w(x - ...

& f1 |4 U; ~/ W

  E& ^% v" ]& @/ [, K% k) A(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
/ J$ K9 t* w; a
: T% P( m6 l# J
# [) t$ }& l. O' z6 k- i' q% @" G(x-x)= 0 ，所以答案係0，is it?

# Y# L1 Y1 l# y: m' \3 }( a1 g* ]+ K) F+ l! @  V, Y
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唔似a.math題
* B' _0 R. M6 t3 R似IQ題=.=; I9 V1 Y/ v0 ^6 B( r

; Z; _" u1 S/ W. o[ 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:$ e. w/ ~1 D; m3 r  w
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+ V  s- R) z$ z9 u8 A(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過2 V0 y- ?) E: [9 w( B6 p
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.........) b/ P  t* F  _' Z2 r) z

3 ^: ]4 x5 ?! p* s: K這條問題，貼落吹水版，名副其實+ F1 u' ]8 \" Z4 i% h9 W0 U
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]