| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎, i7 h* l0 t5 g0 @* j! {; _# }/ `4 z
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(x - a) = x - a
8 k% J) F" X' W3 ]4 x; L: w2 z(x - a) (x - b) = x^2 – ax – bx + ab+ H) V. y- B4 N- a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc: l3 a  n$ t( ^
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
/ R/ g2 @& T) a4 q9 }$ S  a如此種推，
/ i  d5 e7 H2 t/ P(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???9 O# x2 \% @8 S2 T/ ~
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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
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Originally posted by Triangel at 2007-4-18 01:26 PM:- Z; Q/ {  V6 e! N2 ^
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc! T# M. Q3 ^! @+ n1 h' B

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0 a5 K' J) B0 h% S/ X  t+ S0 O[ 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:% j* j! W( P- E1 Y+ e
咁難既=.="
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, [: @6 ~4 `0 A' k7 b1 U[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
# ]3 ^) j8 E! E7 z( Z8 C第一個答中有獎
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(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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+ V3 `4 f! a( D7 U7 O) v. {* B( B" I3 V唔似a.math題& b5 g: q9 e! `9 N4 d  `9 r
似IQ題=.=. G( h$ o. T2 u4 w5 x$ l: n

' Z7 C3 K0 I! n- ?* ^[ 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:, a& ]8 H# ?4 E& ]

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(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
9 ]) I5 u9 j  L7 a3 u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.........
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2 C4 N7 c2 M5 K5 R6 m這條問題，貼落吹水版，名副其實
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]