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March 6, 2015

March 6, 2015

Posted by **Sara** on Tuesday, May 10, 2011 at 11:54am.

The two functions in question are

y = xsinx

y = -xsinx ,

And I need to find the volume that would result if the cross sections were equilateral triangles.

The interval upon which I have to do this is [-2π, 2π].I am aware that I have to integrate an area function in order to obtain the volume, but I am confused about how to get an area function for this.

Can anyone help? Thanks!

- Calculus -
**drwls**, Tuesday, May 10, 2011 at 11:59amI don't know what you mean by the volume of an area, or the cross section of an area.

- Calculus -
**Sara**, Thursday, May 12, 2011 at 10:23amI;m sorry, I did not state that very well. I'm still new to calculus.

I think I have figured it out. Thank you for responding anyway.

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