Weird Volume of Revolution question (1 Viewer)

[Focus is Key]

I don't understand how to do part b of the following question.

a) Find the area bounded by y=e^x, the x-axis and lines x=1 and x=2. Answer is e(e-1) units squared.
b) This area is rotated about the x-axis. Find the volume of the solid formed.


Please if someone could post full working I'd appreciate it so much.

 

[Carrotsticks]

I don't understand how to do part b of the following question.

a) Find the area bounded by y=e^x, the x-axis and lines x=1 and x=2. Answer is e(e-1) units squared.
b) This area is rotated about the x-axis. Find the volume of the solid formed.


Please if someone could post full working I'd appreciate it so much.

 

[Focus is Key]

Yay, thanks Carrotsticks You're a great help!