Question

Ok, using the washer method I need to determine the volume of the enclosed space rotating it about the x-axis. please help and be elaborate

Answer 1

xy=1, x=-, y=1, y=3

Answer 2

x=- ?

Answer 3

oops x=0

Answer 4

its always helpful to draw a pic if you can

since our radiuses go towards y, we are going to want to define xy=1 as y=1/x