Assignment:
Find the volume of the unbounded solid generated by rotating the unbounded region around the x axis. This is the region between the graph of y= e^-x and the x axis for x> or= 1. [Method: Compute the volume from x=1 to x=b, where b> 1. Then find the limit of this volume as b -->+infinity] What about if y=1/√x.
Provide complete and step by step solution for the question and show calculations and use formulas.