Let R be the region in the xy-plane between the graphs of y = ex and y = e-x from x = 0 to x = 2.
a) Find the volume of the solid generated when R is revolved about the x-axis.

Question

Let R be the region in the xy-plane between the graphs of y = ex and y = e-x from x = 0 to x = 2.
	a) Find the volume of the solid generated when R is revolved about the x-axis.

amistre64 · Answer

i forget, which one is this again?

accessdenied · Answer

i have forgotten.  came up too many times just today.  :(

anonymous · Answer

omg i already said this?!?!


1a) Washer because two functions are involved, both in terms of x and it's being revolved around a horizontal line (an equation in terms of x). 
b) Two choices, either use shell or solve each equation for x and find new limits and proceed with washer in a different variables.

amistre64 · Answer

http://openstudy.com/study#/updates/4f4aa931e4b00c3c5d337fb1

anonymous · Answer

below to @richard said the same

amistre64 · Answer

there is some teacher or pack of teachers (prolly feral) thats telling their students to check out the website and ask the same question each time lol

anonymous · Answer

lol but i dont get the answer can someone explain it again? sorry