Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
fauxshaux
Group Title
Find the volume of the solid of revolution generated by rotating around the xaxis the region bounded by y=3^xx^2 and y=0...
 3 years ago
 3 years ago
fauxshaux Group Title
Find the volume of the solid of revolution generated by rotating around the xaxis the region bounded by y=3^xx^2 and y=0...
 3 years ago
 3 years ago

This Question is Closed

dipankarstudy Group TitleBest ResponseYou've already chosen the best response.0
it is better to use disc method to find the volume in this particular case. take any point x then for that point your y will be given according to your equation if you rotate it , it will generate a disc of radius y. for an interval dx the volume will be pi*y^2*dx. you have to find the total area , in that case you have to integrate it . \[\int\limits_{}^{} \pi*y ^{2}*dx= \int\limits_{}^{} \pi*(3^{x}x ^{2})^{2}*dx\] i have not use any limit when doing the integration . you can choose your limit. it is better no to choose x=infinity as it will give your area infinity.
 3 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.