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標題: Maths Question [打印本頁]

作者: oscar 時間: 8/4/2004 08:24 PM
標題: Maths Question
Find the tangent of the x-coordinate of 0 in the equation y=x^2+4x+1.

作者: 霏 時間: 9/4/2004 04:51 PM

Originally posted by oscar at 2004-4-8 08:24 PM:
Find the tangent of the x-coordinate of 0 in the equation y=x^2+4x+1.

Tangent即係切線，[E-Hap]
佢話x-coordinate of 0就係ｓｕｂｓｉｔｕｔｅ　ｘ＝０
Ｓｏ，ａｎｓ就係ｙ＝１

作者: oscar 時間: 11/4/2004 09:50 AM

Originally posted by 幻將 at 2004-4-9 16:51:
Tangent即係切線，[E-Hap]
佢話x-coordinate of 0就係ｓｕｂｓｉｔｕｔｅ　ｘ＝０
Ｓｏ，ａｎｓ就係ｙ＝１

請問你form幾呢?這條數並不如此簡單的...

作者: 2116489 時間: 11/4/2004 09:06 PM
勁

作者: 小卡 時間: 11/4/2004 10:45 PM

Originally posted by 2116489 at 2004-4-11 09:06 PM:
勁

你地D小白唔好再呃post好唔好?你地知唔知你地既呃post,會令版板增加幾多麻煩呀,會令壇主用幾多時間離處理le D呃post呀,le度唔係留言版,唔係chatrom,le度係個論壇離ga,有板規ga,好心你地就唔好咁自私,為左少少積分就離呃post啦,村落絕對唔歡迎你地le D咁既乞人憎白爛,唔該係離呃post既,唔該你地走

作者: sky 時間: 11/4/2004 11:34 PM
他發表文章25 分數1294
怎會有這情況

作者: Ron@MX 時間: 12/4/2004 12:54 PM

Originally posted by sky at 2004-4-11 11:34 PM:
他發表文章25 分數1294
怎會有這情況

唔只佢，有 D 人文章數與分數都唔合比例，
但係佢就嚴重 D ！
一定要查明真相！

作者: itphone 時間: 12/4/2004 12:59 PM
我查過
冇人加分
我真的不清楚＝＝

作者: rogergeot 時間: 12/4/2004 01:29 PM

Originally posted by 我想做好人 at 2004-4-12 12:54 PM:
唔只佢，有 D 人文章數與分數都唔合比例，
但係佢就嚴重 D ！
一定要查明真相！

It is because your 積分 will automatically increase when you have logged in.

作者: Echo21 時間: 13/4/2004 10:48 AM

Originally posted by itphone at 2004-4-12 12:59:
我查過
冇人加分
我真的不清楚＝＝

可能性一
瘋狂呃post
再自行刪post
瘋狂加分（猜測）

可能性二
Hack了你的論壇
再自行修改（猜測）

作者: Echo21 時間: 13/4/2004 10:50 AM

Originally posted by oscar at 2004-4-8 20:24:
Find the tangent of the x-coordinate of 0 in the equation y=x^2+4x+1.

可否說清楚是Form幾的問題？原出地？課題？
否則可能會用錯Fomula（是不是這樣串？）教你（其實我不太看得明[E-Sad]）

作者: oscar 時間: 13/4/2004 04:28 PM
如果你懂得做的話，恭喜你，你已有form5理科生的程序了~因此這題要用Indefinite Integral

作者: rogergeot 時間: 13/4/2004 06:00 PM
No wonder I can't do it. Oscar, have you found out how to do it? If you can, please tell me about it.

[ Last edited by rogergeot on 2004-4-14 at 07:24 AM ]

作者: oscar 時間: 14/4/2004 01:11 AM
我懂lu...原來是那麼easy...
tips: 用Indefinte Integral

作者: counter 時間: 14/4/2004 06:23 AM
y is 1 im sure

作者: 霏 時間: 14/4/2004 09:29 AM

Originally posted by oscar at 2004-4-11 09:50 AM:
請問你form幾呢?這條數並不如此簡單的...

我Ｆｏｒｍ　４　ｇａｒ咋．．．
我係咪答錯ａｒ？

作者: oscar 時間: 14/4/2004 06:17 PM
y=1係錯。
大家留意，我要的是Tangent(A line that has only a point of intersection with another equation=Tangent，不是Trigonomentry的Tangent!)，不是Point。

作者: rogergeot 時間: 14/4/2004 07:49 PM

Originally posted by oscar at 2004-4-13 04:28 PM:
如果你懂得做的話，恭喜你，你已有form5理科生的程序了~因此這題要用Indefinite Integral

Sorry, I don't think I know how to do it. I haven't learned it yet. (I am only an form 4 arts student.) Oscar, why don't you apply to be the moderator of 功課疑難區 too? You are form 2 only and you are already tackling form 5 maths question! I am sure that you can help us alot in maths.

作者: wingwing999 時間: 15/4/2004 11:31 PM

Originally posted by Echo21 at 2004-4-13 10:48 AM:
可能性一
瘋狂呃post
再自行刪post
瘋狂加分（猜測）

可能性二
Hack了你的論壇
再自行修改（猜測）

唔係ｇａ～～只要你成日都留喺個論壇，每當你ｒｅｆｌａｓｈ一次就會加１－３分．．．我都唔知點解，所以搞到我發表得十幾，不過有４百幾積分～～～[E-TeH][E-TeH][E-TeH]（爆炸逃．．．．．．．．．）

作者: 細薯 時間: 16/4/2004 09:55 AM
ｒｅｆｌａｓｈ????no this word wo......in my dictionary~~

作者: wingwing999 時間: 16/4/2004 05:28 PM

Originally posted by smallpotato226 at 2004-4-16 09:55 AM:
ｒｅｆｌａｓｈ????no this word wo......in my dictionary~~

唔好意思．．．．唔識點串．．．中文係重新整理[E-Ton]

作者: rogergeot 時間: 16/4/2004 06:43 PM

Originally posted by wingwing999 at 2004-4-16 05:28 PM:
唔好意思．．．．唔識點串．．．中文係重新整理[E-Ton]

It should be 'refresh'.

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