Let R be the region bounded by the curves y=arctanx,x=1,y=0. LetVx bethesolidofrevolution obtained when R is rotated about the x-axis, and Vy be the solid of revolution obtained when R is rotated about the y-axis. (1)Draw (by hand) the solids of revolution Vx and Vy. Calculate the volumes of Vx and Vy in two different ways: by slicing and by cylindrical shells. As you see, this problem contains four problems. Each of the problem should be solved along the following lines: (2) Draw (by hand) a typical washer/cylindrical shell. (3)Explain what the volume element represents geometrically and calculate it.
Optimization
Optimization comes from the same root as "optimal". "Optimal" means the highest. When you do the optimization process, that is when you are "making it best" to maximize everything and to achieve optimal results, a set of parameters is the base for the selection of the best element for a given system.
Integration
Integration means to sum the things. In mathematics, it is the branch of Calculus which is used to find the area under the curve. The operation subtraction is the inverse of addition, division is the inverse of multiplication. In the same way, integration and differentiation are inverse operators. Differential equations give a relation between a function and its derivative.
Application of Integration
In mathematics, the process of integration is used to compute complex area related problems. With the application of integration, solving area related problems, whether they are a curve, or a curve between lines, can be done easily.
Volume
In mathematics, we describe the term volume as a quantity that can express the total space that an object occupies at any point in time. Usually, volumes can only be calculated for 3-dimensional objects. By 3-dimensional or 3D objects, we mean objects that have length, breadth, and height (or depth).
Area
Area refers to the amount of space a figure encloses and the number of square units that cover a shape. It is two-dimensional and is measured in square units.
Let R be the region bounded by the curves y=arctanx,x=1,y=0. LetVx bethesolidofrevolution obtained when R is rotated about the x-axis, and Vy be the solid of revolution obtained when R is rotated about the y-axis.
(1)Draw (by hand) the solids of revolution Vx and Vy.
Calculate the volumes of Vx and Vy in two different ways: by slicing and by cylindrical shells. As you see, this problem contains four problems. Each of the problem should be solved along the following lines:
(2) Draw (by hand) a typical washer/cylindrical shell.
(3)Explain what the volume element represents geometrically and calculate it. (4) Set up the integral for the volume and calculate this integral using definite integral calculator from WolframAlpha. Provide a screenshot.
also(5) is it the same value for each of Vx, Vy regardless the way of calculation?
Trending now
This is a popular solution!
Step by step
Solved in 7 steps with 7 images
