Maths question...Volume of Revolution :o(

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Anonymous

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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)

Staff member

ProudToBeMuslim

Member
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.

Tdol

Editor, UsingEnglish.com
Staff member
I couldn't even cheat on this one. ;-)

ProudToBeMuslim

Member
tdol said:
I couldn't even cheat on this one. ;-)

It means you are not very good in cheating.

ProudToBeMuslim

Member
tdol said:
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.

Tdol

Editor, UsingEnglish.com
Staff member
ProudToBeMuslim said:
tdol said:
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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