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For 2 you use limits, but you gotta use them with improper integrals (volume and surface area). Geez i'm giving it away!
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Posted: 2004-10-21 22:19:25
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@kimcheeboi
You really need to get a life...
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Posted: 2004-10-21 22:21:48
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Lol it's called school :xx , and if you didn't know calculus is my fav ;-)
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Posted: 2004-10-21 22:26:05
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I can't wait for next year, A-Level maths
Do you mind if i post my own question here Kim?
(Maybe we could start a thread...)
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[ This Message was edited by: maddav on 2004-10-21 21:35 ]
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Posted: 2004-10-21 22:31:23
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The first is very easy, but i'm almost asleep, so maybe tomorrow when i get a sheet of paper. The proof of the 2nd is a simple plane.
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Posted: 2004-10-21 22:38:38
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That's it, i remembered something!
it's about rotating across the x axis on 2 hyperbola, but I can't remember, i know you eventually you get the infinite surface area, and finite volume.
I remembered our physics teacher that was going on about theories of the 'shape' of the universe, and he expained the gabriel's horn shape, and we were asking if that was A-level, he said no, and that it was just kind of interesting..
well he was right
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[ This Message was edited by: maddav on 2004-10-21 22:08 ]
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Posted: 2004-10-21 22:57:40
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Sure, post your own problems! I'll post some linear algebra and differential eqs too if anyone wants. Btw to win the #1 you need to use 2 integrals. Very simple problem. ;-)
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Posted: 2004-10-21 23:13:34
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I passed my A-level Maths 2 and a half years ago. Now managed to wipe all of it from the brain
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Posted: 2004-10-21 23:15:58
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This is as far as I got in math... and that's by watching an episode of "The Simpsons". The one with Barney (The purple dinosaur) on it...
"Two plus two is four.... Two plus two is four... Two plus two is four...:"
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Posted: 2004-10-21 23:19:06
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here's a good one!
A series circuit contains a resistor with R= 40 ohms, an inductor with L=2H, a capacitor with C=0.0025 F, and a 12-V batter. The initial charge is Q=.01C and the initial current is 0. Find the charge at time t.
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Posted: 2004-10-22 00:39:00
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