6. The graph of f (x) = 8 – x' and the line I, which is tangent to f at x=1, is shown in the figure to the right. R is the shaded region between f and I and the y -axis, while S is the shaded region between f and l and the x – axis. (a) Find the area of the shaded region R + S. line / y-- (b) Region R is the base of a solid. For this solid, each cross-section Perpendicular to the x- axis is a semicircle. Find the volume of the solid. (c) Region S is rotated about the y – axis. Find the volume of the solid. (d) Region S models the surface of a piece of glass. At all points in S at a distance y from the x – axis, the thíckness of the glass is given by h(y) = 8- y. Write, but do not evaluate, an expression that represents the volume of the glass.

6. The graph of f (x) = 8 – x' and the line I, which is tangent to f at x=1, is shown in the figure to the right. R is the shaded region between f and I and the y -axis, while S is the shaded region between f and l and the x – axis. (a) Find the area of the shaded region R + S. line / y-- (b) Region R is the base of a solid. For this solid, each cross-section Perpendicular to the x- axis is a semicircle. Find the volume of the solid. (c) Region S is rotated about the y – axis. Find the volume of the solid. (d) Region S models the surface of a piece of glass. At all points in S at a distance y from the x – axis, the thíckness of the glass is given by h(y) = 8- y. Write, but do not evaluate, an expression that represents the volume of the glass.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

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.

Question

6. The graph of f (x) = 8- x' and the line l, which is tangent to f at x = 1,
is shown in the figure to the right. R is the shaded region between f and I
and the y -axis, while S is the shaded region between f and l and the x - axis.
(1.7)
(a) Find the area of the shaded region R+ S.
line /
y=8-x
(b) Region R is the base of a solid. For this solid, each cross-section
Perpendicular to the x- axis is a semicircle. Find the volume of
the solid.
(c) Region S is rotated about the y - axis. Find the volume of the solid.
(d) Region S models the surface of a piece of glass. At all points in S at a distance y from the x- axis, the
thickness of the glass is given by h(y) = 8- y. Write, but do not evaluate, an expression that represents the
volume of the glass.

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