| TriTri | A-Math 加分題 |
第一個答中有獎O0D5y [#p"Gtd}7OIZ L6l
[color=Blue](x - a) [/color] = x - a r0B4[9pOu
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab
[color=Blue](x - a) (x - b) (x – c) [/color] = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abcS6~R1UR8_
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd9|/w4s6z,I}!^
如此種推,ksH/a.FoB
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
[[i] Last edited by Triangel on 2007-4-18 at 01:52 PM [/i]] 點解你個問題好似有d問題
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
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[[i] Last edited by 大大 on 2007-4-18 at 01:54 PM [/i]] [quote]Originally posted by [i]大大[/i] at 2007-4-18 01:41 PM:Aharmu7K J+P
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[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]f"@er9bi/|Y e K
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Thanks! 更正啦 [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:xp{4d,D8{R7`
第一個答中有獎ik1q[~
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[color=Blue](x - ... [/quote]
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(x-x)= 0 ,所以答案係0,is it? [quote]Originally posted by [i]littlenic[/i] at 2007-4-18 01:54 PM::s5i] Z;JH p u0c `
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(x-x)= 0 ,所以答案係0,is it? [/quote]
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[[i] Last edited by 大大 on 2007-4-18 at 01:57 PM [/i]] [quote]Originally posted by [i]littlenic[/i] at 2007-4-18 01:54 PM:
(x-x)= 0 ,所以答案係0,is it? [/quote]qv5mu)j'Ab!s
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Bingo~ 我係學校個學生會單張見過:haha::haha:P R8Rh0YXe/_1j
諗左一陣先諗到 我吾識答啊[IMG]http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif[/IMG]~~~ [IMG]http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif[/IMG] (哭)~~~~~其實我都知係0......... ^d1K8e9kzq@eg
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這條問題,貼落吹水版,名副其實:naughty::naughty:
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[[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]
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