Volume of solid of revolution

Hello Guys, welcome back again in my blog.
Good afternoon everyone.

In this section we will try to solve the exercise about volume of solid of revolution in my college,we can find the volume by use disks method, washer method or shell method. so let's look at the disscussion. You can download this file and if i'm wrong in doing the task, you can correct me by writing in the comments below.

Thank You for your coming, and see you in the next discussion.