久違 發表於 2005-12-2 23:19:13

HELP (maths)~

Find the shortest and longest distance from the point (2,0) to the circle (x-1)^2+(y-1)^2=1 ???

有無人幫到我.?????唔該

yuren 發表於 2005-12-2 23:43:29

你都要問人?:icon101:

TAMTOM 發表於 2005-12-2 23:55:23

搵個distance ,
減番個r 就係shortest ,加r 就係longest?

呢D Maths 好似咁難咁既:eek::icon054:

2076 發表於 2005-12-3 00:25:24

Originally posted by TAMTOM at 2005-12-2 11:55 PM:
搵個distance ,
減番個r 就係shortest ,加r 就係longest?

呢D Maths 好似咁難咁既:eek::icon054:

好似係A.Maths
不過已經唔記得晒:icon032:

TAMTOM 發表於 2005-12-3 00:45:11

Originally posted by 2076 at 2005-12-3 00:25:


好似係A.Maths
不過已經唔記得晒:icon032:
還曬比亞Sir:icon101:

久違 發表於 2005-12-3 01:22:54

Originally posted by yuren at 2005-12-2 11:43 PM:
你都要問人?:icon101:
我唔知點解諗唔到...:icon101:

久違 發表於 2005-12-3 01:24:06

Originally posted by TAMTOM at 2005-12-2 11:55 PM:
搵個distance ,
減番個r 就係shortest ,加r 就係longest?
....我開頭都係咁諗...不過好似唔係咁我先問咋...
其實係咪真係咁????:icon101:

[ Last edited by 久違 on 3-12-2005 at 01:29 AM ]

TAMTOM 發表於 2005-12-3 01:42:47

Originally posted by 久違 at 2005-12-3 01:24:
....我開頭都係咁諗...不過好似唔係咁我先問咋...
其實係咪真係咁????:icon101:

[ Last edited by 久違 on 3-12-2005 at 01:29 AM ]
你唔知answer 咩 ,計完對下answer 咪知囉:icon101:

不過我諗岩掛 ,連住centre個個點既距離得一個條直線 ,減番個radius 仲唔係shortest?
個圓最長既直線就係 2r,咁shortest + 2r 仲唔係最長?(只係我諗....:icon101:)

久違 發表於 2005-12-3 01:49:34

Originally posted by TAMTOM at 2005-12-3 01:42 AM:

你唔知answer 咩 ,計完對下answer 咪知囉:icon101:

不過我諗岩掛 ,連住centre個個點既距離得一個條直線 ,減番個radius 仲唔係shortest?
個圓最長既直線就係 2r,咁shortest + 2r 仲唔係最長?(只係我諗....:i ...
岩岩問左人...原來唔比咁計ar....:icon101:
要用differentiation 黎計wo:eek::icon101:

Erlkoing上的KK 發表於 2005-12-3 04:56:05

Originally posted by 久違 at 2005-12-3 01:49 AM:

岩岩問左人...原來唔比咁計ar....:icon101:
要用differentiation 黎計wo:eek::icon101:
駛唔駛呀...:icon092::icon092:
tamtom 個個咪ok lor~:icon101:

TAMTOM 發表於 2005-12-3 12:53:31

Originally posted by 久違 at 2005-12-3 01:49:

岩岩問左人...原來唔比咁計ar....:icon101:
要用differentiation 黎計wo:eek::icon101:
而家D 數咁鬼煩:eek::icon101:

久違 發表於 2005-12-3 22:00:35

Originally posted by Erlkoing上的KK at 2005-12-3 04:56 AM:

駛唔駛呀...:icon092::icon092:
tamtom 個個咪ok lor~:icon101:
我都唔想ar...佢迫人用:icon110:
咁點ar:icon074::icon101:

久違 發表於 2005-12-3 22:00:54

Originally posted by TAMTOM at 2005-12-3 12:53 PM:

而家D 數咁鬼煩:eek::icon101:
想打十佢law:icon101:

yuren 發表於 2005-12-4 10:12:56

Originally posted by 久違 at 2005-12-3 22:00:

我都唔想ar...佢迫人用:icon110:
咁點ar:icon074::icon101:
take log...:icon101::icon101::icon101:
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