Maths question...Volume of Revolution :o(

• 25-Aug-2004, 00:08
Anonymous
Maths question...Volume of Revolution :o(

The region enclosed between the graphs of y=x and y=x^2 is denoted by R. Find the volume generated when R is rotated through 360' about

a) the x-axis

b) the y-axis

Could somebody please explain to me how the question is done?

Thank you very much!

Charence (charencewong@yahoo.co.uk)
• 25-Aug-2004, 08:00
Tdol
Charence, I'm afraid I can't help- this is a language forum, but maybe one of our posters will be able to help.

However, you might find forums specialising in maths more use:
;-)
• 25-Aug-2004, 18:37
ProudToBeMuslim
Re: Maths question...Volume of Revolution :o(
Hi!!

Do you know ? You asked a tough question.
Is this your assignment/home work or you are asking it for someone else?
This is a difficult question because it involves so many things like

Integration, curves and then volume of rotating region.
One more thing "Annulus".

There are only two points of intersection of this region (0,0) and (1,1).
To explain this level of Maths is so difficult because when region rotated it will generate some solid. I suggest you to use paper and draw a graph. It will help you.I am sorry I am not very helpfull. There is a solution in my mind , I am not sure it is right.
If I will find out I will send you.

• 26-Aug-2004, 00:37
Tdol
I couldn't even cheat on this one. ;-)
• 26-Aug-2004, 17:25
ProudToBeMuslim
Quote:

Originally Posted by tdol
I couldn't even cheat on this one. ;-)

It means you are not very good in cheating. :)
• 26-Aug-2004, 18:56
ProudToBeMuslim
[quote="tdol"]Charence, I'm afraid I can't help- this is a language forum.

quote]

And Mathematics is a Language of reason.
And this time I am unable to find a reason. :oops:
• 26-Aug-2004, 23:30
Tdol
Quote:

Originally Posted by ProudToBeMuslim
Quote:

Originally Posted by tdol
I couldn't even cheat on this one. ;-)

It means you are not very good in cheating. :)

That's unfair-I'm a world class cheat.;-)

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