Volume of Solid

  • Thread starter xstetsonx
  • Start date
  • #1
78
0
Consider the region R bounded by y=9-x^2, y=0, x=0. rotate the line y=-1

I am not sure about the bounds. The outer radius is -1 , and the inner radius is -10+x^2 right? but after i do the calculation i got a negative value. does that mean i got the radius wrong?
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
251
Hi xstetsonx! :smile:

(try using the X2 tag just above the Reply box :wink:)
Consider the region R bounded by y=9-x^2, y=0, x=0. rotate the line y=-1

I am not sure about the bounds. The outer radius is -1 , and the inner radius is -10+x^2 right? but after i do the calculation i got a negative value. does that mean i got the radius wrong?

How can a radius be negative? :confused:

The inner radius is 1 , and the outer radius is 10 - x2. :smile:
 
  • #3
78
0
hahahaha omg i am an idiot hahahaha
 

Related Threads on Volume of Solid

  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
7
Views
1K
  • Last Post
Replies
5
Views
4K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
3
Views
999
  • Last Post
Replies
11
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
10
Views
2K
Top