# Heeeelp me^_*

Challenging Problems

Develop a formula for the volume of an ellipsoid of the form
x2\a2 +y2\b2 +z2\c2 = 1

pls Help me;

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Defennder
Homework Helper
You can parametrise it as follows:
http://en.wikipedia.org/wiki/Ellipsoid

Then perform a triple integration to find the volume in spherical coordinates. But the problem I got with this method is finding the limits of integration for p.

Thank you very much Defennnder

but I dont understand it .

What exactly don't you understand? Are you familiar with using triple integrals in order to find the volume of some three-dimensional region?

I want to underatand
how I can develop a formula for the volume of an ellipsoid by that equation

HallsofIvy
Homework Helper
If you have no idea how to find a volume of rotation, why are you attempting a problem like this?

Thank you HallsofIvy for helping me

So

there is no one can help me ???^-*

HallsofIvy
Homework Helper

Defennder
Homework Helper
Does the method of volume by rotation work if all three semi-axes are unequal?

it must be equal

Defennder
Homework Helper
Do you mean to say all are equal? Or 2 are equal? Because if all are equal, then you have a sphere. If only 2 are equal then you only need to find the volume by rotation by integration as Halls said.

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I am sorry
2 are equal

Defennder
Homework Helper
Thank you alooooooooooooooooooooooooooooooooot

ya
I am from UoS
Why??
whze this??

Defennder
Homework Helper
Um just a reminder before the two of you get warnings from forum admins. Please do all your chatting through Private Messages.

Ohhhhh