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Triangel 發表於 2007-4-18 01:26 PM

| TriTri | A-Math 加分題 |

第一個答中有獎
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[color=Blue](x - a) [/color] = x - a
h?IiU \a-c [color=Blue](x - a) (x - b)[/color] = x^2 – ax – bx + abg.c{+zH8R2c
[color=Blue](x - a) (x - b) (x – c) [/color] =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc8[Q-m5{p!t
[color=Blue](x - a) (x - b) (x – c) (x - d)[/color] = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd7J:YKk;zb?d:Y
如此種推，0AE!f yrc&a0o+@+v
[color=Blue](x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) [/color]= ???N n2T#V*w

fB%PT [P [[i] Last edited by Triangel on 2007-4-18 at 01:52 PM [/i]]

大大 發表於 2007-4-18 01:41 PM

點解你個問題好似有d問題
m] yJ\}3_ [quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:1h1l$B6lF+C
(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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6had-t^;~[`0K [[i] Last edited by 大大 on 2007-4-18 at 01:54 PM [/i]]

Triangel 發表於 2007-4-18 01:54 PM

[quote]Originally posted by [i]大大[/i] at 2007-4-18 01:41 PM:k;I6A IgED Fp8`5D
咁難既=.="
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S5``5J d1}lgct [[i] Last edited by 大大 on 2007-4-18 at 01:52 PM [/i]] [/quote],h_HSa?h`
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Thanks! 更正啦

littlenic 發表於 2007-4-18 01:54 PM

[quote]Originally posted by [i]Triangel[/i] at 2007-4-18 01:26 PM:
:R_ X i"^0O#S2y*U 第一個答中有獎
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G#?#B_2Wk ef'R Hi [color=Blue](x - ... [/quote]
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_;dly[d (x-x)= 0 ，所以答案係0，is it?

大大 發表於 2007-4-18 01:56 PM

[quote]Originally posted by [i]littlenic[/i] at 2007-4-18 01:54 PM: MGU'J'L

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(x-x)= 0 ，所以答案係0，is it? [/quote],m ] B1cJo*W
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z!so5w{p?!w [[i] Last edited by 大大 on 2007-4-18 at 01:57 PM [/i]]

Triangel 發表於 2007-4-18 01:57 PM

[quote]Originally posted by [i]littlenic[/i] at 2007-4-18 01:54 PM:z#k~w
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(x-x)= 0 ，所以答案係0，is it? [/quote]
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waikong 發表於 2007-4-18 03:53 PM

我係學校個學生會單張見過:haha::haha:~ MV7Z-kCS-l
諗左一陣先諗到

playbr2 發表於 2007-4-18 04:00 PM

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]

karen0123 發表於 2007-4-18 05:50 PM

(哭)~~~~~其實我都知係0.........
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這條問題，貼落吹水版，名副其實:naughty::naughty:
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/r?'Ll*X S#|#K [[i] Last edited by karen0123 on 2007-4-18 at 05:51 PM [/i]]

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