Disk Method Calculus Math
Math ap calculus ab 2017 edition applications of definite integrals volume.
Disk method calculus math. What we re doing is for each x we re finding a little dx around it so this right over here is a little dx. So what we re doing is we re multiplying this width times this height right over here. The disk method calculates the volume of the full solid of revolution by summing the volumes of these thin circular disks from the left endpoint a a a to the right endpoint b b b as the thickness δ x delta x δ x goes to 0 0 0 in the limit. The disk method in calculus is a means to finding the volume of a solid that has been created when the graph of a function is revolved about a line usually the x or y axis.
Let s say that this right over here is x is equal to 2. This gives the volume of the solid of revolution.