| TriTri | A-Math 加分題 |
第一個答中有獎T:~G5w!us)i%m%Ml$a~ X$g8Z.w5u1aI
[color=Blue](x - a) [/color] = x - a:h"p {$B0]#D0M$C
[color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + ab&?A#K%ng,th jZ
[color=Blue](x - a) (x - b) (x – c) [/color] = x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc5@(}P"N6`6f
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcdR1l~JJR$p
如此種推,4~)]'tH k!N%Q6\:g;[
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???
[[i] Last edited by Triangel on 2007-4-18 at 01:52 PM [/i]] 點解你個問題好似有d問題
[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:&I2K)?)[I-`
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 [color=red]–[/color] abx + acx + bcx - abc
[/quote]
[[i] Last edited by 大大 on 2007-4-18 at 01:54 PM [/i]] [quote]Originally posted by [i]大大[/i] at 2007-4-18 01:41 PM:6s(M$p t S`v
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[[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote]ijj.q2D/@2t
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Thanks! 更正啦 [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
第一個答中有獎
[color=Blue](x - ... [/quote]?1z-W)k%S0h@
(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:S&KoZ`,I
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(x-x)= 0 ,所以答案係0,is it? [/quote]
:good:
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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:h$o1c5oo]HKV
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(x-x)= 0 ,所以答案係0,is it? [/quote]/h'_mX2vhVu Q
Bingo~ 我係學校個學生會單張見過:haha::haha:
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.........
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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