Volume of a Region inside a cylinder and sphere (Symbolic)

xipe
Messages
9
Reaction score
0

Homework Statement


Suppose W is the region inside the cylinder x^2+y^2=a^2 and inside the sphere x^2+y^2+z^2=b^2, where 0<a<b.
Set up an iterated integral for the volume of W

Homework Equations


x^2+y^2+z^2=b^2
x^2+y^2=a^2
0<a<b

The Attempt at a Solution


I converted to cylindrical coordinates and tried to set up the triple integral as follows
[rdzdthetadr], where -sqrt(b^2-r^2)<=z<=sqrt(b^2-r^2), 0<=theta<=2pi, 0<=r<=a. Am I at least on the right track for the integral? Any help is seriously appreciated. Thank you! :)
P.S. (<= is meant to be 'less than or equal to'), just figured I'd clarify :)
 
Physics news on Phys.org
xipe said:

Homework Statement


Suppose W is the region inside the cylinder x^2+y^2=a^2 and inside the sphere x^2+y^2+z^2=b^2, where 0<a<b.
Set up an iterated integral for the volume of W

Homework Equations


x^2+y^2+z^2=b^2
x^2+y^2=a^2
0<a<b

The Attempt at a Solution


I converted to cylindrical coordinates and tried to set up the triple integral as follows
[rdzdthetadr], where -sqrt(b^2-r^2)<=z<=sqrt(b^2-r^2), 0<=theta<=2pi, 0<=r<=a. Am I at least on the right track for the integral? Any help is seriously appreciated. Thank you! :)
P.S. (<= is meant to be 'less than or equal to'), just figured I'd clarify :)
That looks correct.
 
Thank you for the reply. I spend way longer than I should have on this problem. I thought it was more complicated than this, so I am happy that the solution was easier than expected. Cheers! :)
 
Thread 'Use greedy vertex coloring algorithm to prove the upper bound of χ'
Hi! I am struggling with the exercise I mentioned under "Homework statement". The exercise is about a specific "greedy vertex coloring algorithm". One definition (which matches what my book uses) can be found here: https://people.cs.uchicago.edu/~laci/HANDOUTS/greedycoloring.pdf Here is also a screenshot of the relevant parts of the linked PDF, i.e. the def. of the algorithm: Sadly I don't have much to show as far as a solution attempt goes, as I am stuck on how to proceed. I thought...
Back
Top