[SOLVED] Finding/sketching volume with the washer method 1. The problem statement, all variables and given/known data Consider the region bounded by the curves [tex] y=x^2+1[/tex] & [tex]y=3-x^2[/tex]. a) Using the disk/washer method, find the volume of the solid obtained by rotating this region about the x-axis. b) Setup the integral for finding the volume of the solid obtained by rotating this region about the x-axis. In each case, draw a diagram, indicating a typical "strip" (and its slice). 2. Relevant equations 3. The attempt at a solution I'm pretty sure the first one is right wrt x. http://www.mcp-server.com/~lush/shillmud/inta1.6.JPG Is this the correct way to set it up wrt y? Is there a simpler way? http://www.mcp-server.com/~lush/shillmud/intb1.6.JPG Also, what should I draw to "indicate a 'strip'"? I see the words strip, slab, and slice often used in a seemingly interchangeable fashion. What are they asking for here? Thanks for reading.