Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Calculus and Beyond Homework Help
Find Volumes of Rotated Solids in AP Calc
Reply to thread
Message
[QUOTE="Simon Bridge, post: 4701365, member: 367532"] You are attempting to apply the formula for the volume of a solid of revolution [i]by the disk method[/i]. "outer radius" and "inner radius" are kinda misleading terms. You want the volume of the solid of revolution bounded above by two curves f(x) and g(x) inside a<x<b, about line y=c. You should always sketch out the situation. ... that makes the outer and inner radius the same though?? Note: vertical distance of y[sub]1[/sub]=f(x) from y[sub]2[/sub]=c is |y[sub]1[/sub]-y[sub]2[/sub]| = |f(x)-c|=|c-f(x)| When you evaluate these integrals, it is common to have to divide them up into regions ... since sometimes f(x) > g(x) and sometimes the other way around. ... sketch out the possibilities and see: what is the difference? [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Calculus and Beyond Homework Help
Find Volumes of Rotated Solids in AP Calc
Back
Top