| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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. s, i/ I5 H) D/ ~0 R* l(x - a) = x - a
, C) V* K' B! M9 ?* c( i9 y(x - a) (x - b) = x^2 – ax – bx + ab
8 l7 J5 C6 E; t4 v" C+ a* h+ G/ m6 Q(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc
# l# ]3 v7 k2 f5 }5 }(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
6 d5 V& X' Y3 {/ u+ f如此種推，4 ^9 b% ?% z0 j" K2 ?8 _" ?
(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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0 r* r3 ]. F/ e. o5 E" H[ 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
& E; H: u. G( u( z

Originally posted by Triangel at 2007-4-18 01:26 PM:
( C& \) }: B" f# V7 t& S(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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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:
: q+ R8 U' Q) g咁難既=.="; P4 m2 P3 Y5 \2 `6 i
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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/ s* b5 M- n9 TThanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:0 X0 h) B. a1 J
第一個答中有獎
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(x - ...

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9 [9 O' u/ v' D7 B( H(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:9 @" m0 }2 J- s& T) S# G/ S: c
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(x-x)= 0 ，所以答案係0，is it?

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- S$ W/ i4 U4 y5 p! Q  J* E8 E) P+ g唔似a.math題
4 D) k9 {2 j3 `* u5 n似IQ題=.=
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[ 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. R6 W; p4 o' p! V- y; ]* @- d8 B" k' V
, ~+ [  _  c6 o
(x-x)= 0 ，所以答案係0，is it?

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4 x5 `( \# U, f5 ^Bingo~

waikong

我係學校個學生會單張見過
- `1 d1 v! Q" M5 T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.........- L- p, i9 T, W. h

( G8 g0 a& d% I" S' N這條問題，貼落吹水版，名副其實6 ~1 F2 a0 s2 w! j$ X/ J

0 {+ v6 |& `1 z! W, c2 ]$ p. a[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]