BuyFindarrow_forward

Single Variable Calculus: Early Tr...

8th Edition
James Stewart
ISBN: 9781305270343

Solutions

Chapter
Section
BuyFindarrow_forward

Single Variable Calculus: Early Tr...

8th Edition
James Stewart
ISBN: 9781305270343
Textbook Problem

Find the dimensions of the rectangle of largest area that can be inscribed in a circle of radius r.

To determine

To find: The dimension of the rectangle of largest area that can be inscribed in a circle of radius r .

Explanation

Formula used:

Differentiation of the product of two functions,

ddx(uv)=dudxv+udvdx

Where u,v are functions of x .

Pythagorean Theorem:

If c denotes the length of the hypotenuse and a and b denote the length of the other two sides of a right angle triangle, then the Pythagorean theorem can be expressed as the Pythagorean equation: a2+b2=c2

Calculation:

Letr be the radius of the circle.

The length of the rectangle = x.

The width of the rectangle = y.

In figure 1 the rectangle is inscribed in a circle of radius r.

By Pythagoras theorem,

x2+y2=(2r)2y2=4r2x2y=(4r2x2)

Area of the rectangle is A=xy

Substitute the value of y in area of rectangle A,

A=x(4r2x2)

Differentiate with respect to x ,

dAdx=x×12(4×r2-x2)×(2×x)+(4r2x2)×1=x2(4r2-x2)+(4r2-x2)

Simplifying further,

dAdx=x2(4r2x2)+(4r2x2)(4r2x2)(4r2x2)=x2(4r2x2)+(4r2x2)(4r2x2)=(4r22x2)(4r2x2)

For critical points, dAdx =0

(4r22x2)(4r2x2) =0

4r22x2 =0

x=±r2

Length of rectangle cannot be negative

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started
Sect-4.1 P-11ESect-4.1 P-12ESect-4.1 P-13ESect-4.1 P-14ESect-4.1 P-15ESect-4.1 P-16ESect-4.1 P-17ESect-4.1 P-18ESect-4.1 P-19ESect-4.1 P-20ESect-4.1 P-21ESect-4.1 P-22ESect-4.1 P-23ESect-4.1 P-24ESect-4.1 P-25ESect-4.1 P-26ESect-4.1 P-27ESect-4.1 P-28ESect-4.1 P-29ESect-4.1 P-30ESect-4.1 P-31ESect-4.1 P-32ESect-4.1 P-33ESect-4.1 P-34ESect-4.1 P-35ESect-4.1 P-36ESect-4.1 P-37ESect-4.1 P-38ESect-4.1 P-39ESect-4.1 P-40ESect-4.1 P-41ESect-4.1 P-42ESect-4.1 P-43ESect-4.1 P-44ESect-4.1 P-45ESect-4.1 P-46ESect-4.1 P-47ESect-4.1 P-48ESect-4.1 P-49ESect-4.1 P-50ESect-4.1 P-51ESect-4.1 P-52ESect-4.1 P-53ESect-4.1 P-54ESect-4.1 P-55ESect-4.1 P-56ESect-4.1 P-57ESect-4.1 P-58ESect-4.1 P-59ESect-4.1 P-60ESect-4.1 P-61ESect-4.1 P-62ESect-4.1 P-63ESect-4.1 P-64ESect-4.1 P-65ESect-4.1 P-66ESect-4.1 P-67ESect-4.1 P-68ESect-4.1 P-69ESect-4.1 P-70ESect-4.1 P-71ESect-4.1 P-72ESect-4.1 P-73ESect-4.1 P-74ESect-4.1 P-75ESect-4.1 P-76ESect-4.1 P-77ESect-4.1 P-78ESect-4.1 P-79ESect-4.1 P-80ESect-4.2 P-1ESect-4.2 P-2ESect-4.2 P-3ESect-4.2 P-4ESect-4.2 P-5ESect-4.2 P-6ESect-4.2 P-7ESect-4.2 P-8ESect-4.2 P-9ESect-4.2 P-10ESect-4.2 P-11ESect-4.2 P-12ESect-4.2 P-13ESect-4.2 P-14ESect-4.2 P-15ESect-4.2 P-16ESect-4.2 P-17ESect-4.2 P-18ESect-4.2 P-19ESect-4.2 P-20ESect-4.2 P-21ESect-4.2 P-22ESect-4.2 P-23ESect-4.2 P-24ESect-4.2 P-25ESect-4.2 P-26ESect-4.2 P-27ESect-4.2 P-28ESect-4.2 P-29ESect-4.2 P-30ESect-4.2 P-31ESect-4.2 P-32ESect-4.2 P-33ESect-4.2 P-34ESect-4.2 P-36ESect-4.2 P-37ESect-4.2 P-38ESect-4.3 P-1ESect-4.3 P-2ESect-4.3 P-3ESect-4.3 P-4ESect-4.3 P-5ESect-4.3 P-6ESect-4.3 P-7ESect-4.3 P-8ESect-4.3 P-9ESect-4.3 P-10ESect-4.3 P-11ESect-4.3 P-12ESect-4.3 P-13ESect-4.3 P-14ESect-4.3 P-15ESect-4.3 P-16ESect-4.3 P-17ESect-4.3 P-18ESect-4.3 P-19ESect-4.3 P-20ESect-4.3 P-21ESect-4.3 P-22ESect-4.3 P-23ESect-4.3 P-24ESect-4.3 P-25ESect-4.3 P-26ESect-4.3 P-27ESect-4.3 P-28ESect-4.3 P-29ESect-4.3 P-30ESect-4.3 P-31ESect-4.3 P-32ESect-4.3 P-33ESect-4.3 P-34ESect-4.3 P-35ESect-4.3 P-36ESect-4.3 P-37ESect-4.3 P-38ESect-4.3 P-39ESect-4.3 P-40ESect-4.3 P-41ESect-4.3 P-42ESect-4.3 P-43ESect-4.3 P-44ESect-4.3 P-45ESect-4.3 P-46ESect-4.3 P-47ESect-4.3 P-48ESect-4.3 P-49ESect-4.3 P-50ESect-4.3 P-51ESect-4.3 P-52ESect-4.3 P-53ESect-4.3 P-54ESect-4.3 P-55ESect-4.3 P-56ESect-4.3 P-57ESect-4.3 P-58ESect-4.3 P-59ESect-4.3 P-60ESect-4.3 P-61ESect-4.3 P-62ESect-4.3 P-66ESect-4.3 P-67ESect-4.3 P-68ESect-4.3 P-69ESect-4.3 P-70ESect-4.3 P-71ESect-4.3 P-72ESect-4.3 P-73ESect-4.3 P-74ESect-4.3 P-75ESect-4.3 P-76ESect-4.3 P-77ESect-4.3 P-78ESect-4.3 P-79ESect-4.3 P-80ESect-4.3 P-81ESect-4.3 P-82ESect-4.3 P-83ESect-4.3 P-84ESect-4.3 P-85ESect-4.3 P-86ESect-4.3 P-87ESect-4.3 P-88ESect-4.3 P-89ESect-4.3 P-90ESect-4.3 P-92ESect-4.3 P-93ESect-4.4 P-1ESect-4.4 P-2ESect-4.4 P-3ESect-4.4 P-4ESect-4.4 P-5ESect-4.4 P-6ESect-4.4 P-7ESect-4.4 P-8ESect-4.4 P-9ESect-4.4 P-10ESect-4.4 P-11ESect-4.4 P-12ESect-4.4 P-13ESect-4.4 P-14ESect-4.4 P-15ESect-4.4 P-16ESect-4.4 P-17ESect-4.4 P-18ESect-4.4 P-19ESect-4.4 P-20ESect-4.4 P-21ESect-4.4 P-22ESect-4.4 P-23ESect-4.4 P-24ESect-4.4 P-25ESect-4.4 P-26ESect-4.4 P-27ESect-4.4 P-28ESect-4.4 P-29ESect-4.4 P-30ESect-4.4 P-31ESect-4.4 P-32ESect-4.4 P-33ESect-4.4 P-34ESect-4.4 P-35ESect-4.4 P-36ESect-4.4 P-37ESect-4.4 P-38ESect-4.4 P-39ESect-4.4 P-40ESect-4.4 P-41ESect-4.4 P-42ESect-4.4 P-43ESect-4.4 P-44ESect-4.4 P-45ESect-4.4 P-46ESect-4.4 P-47ESect-4.4 P-48ESect-4.4 P-49ESect-4.4 P-50ESect-4.4 P-51ESect-4.4 P-52ESect-4.4 P-53ESect-4.4 P-54ESect-4.4 P-55ESect-4.4 P-56ESect-4.4 P-57ESect-4.4 P-58ESect-4.4 P-59ESect-4.4 P-60ESect-4.4 P-61ESect-4.4 P-62ESect-4.4 P-63ESect-4.4 P-64ESect-4.4 P-65ESect-4.4 P-66ESect-4.4 P-67ESect-4.4 P-68ESect-4.4 P-69ESect-4.4 P-70ESect-4.4 P-71ESect-4.4 P-72ESect-4.4 P-73ESect-4.4 P-74ESect-4.4 P-75ESect-4.4 P-76ESect-4.4 P-77ESect-4.4 P-78ESect-4.4 P-79ESect-4.4 P-80ESect-4.4 P-81ESect-4.4 P-82ESect-4.4 P-83ESect-4.4 P-84ESect-4.4 P-85ESect-4.4 P-86ESect-4.4 P-87ESect-4.4 P-88ESect-4.4 P-89ESect-4.4 P-90ESect-4.4 P-91ESect-4.4 P-92ESect-4.5 P-1ESect-4.5 P-2ESect-4.5 P-3ESect-4.5 P-4ESect-4.5 P-5ESect-4.5 P-6ESect-4.5 P-7ESect-4.5 P-8ESect-4.5 P-9ESect-4.5 P-10ESect-4.5 P-11ESect-4.5 P-12ESect-4.5 P-13ESect-4.5 P-14ESect-4.5 P-15ESect-4.5 P-16ESect-4.5 P-17ESect-4.5 P-18ESect-4.5 P-19ESect-4.5 P-20ESect-4.5 P-21ESect-4.5 P-22ESect-4.5 P-23ESect-4.5 P-24ESect-4.5 P-25ESect-4.5 P-26ESect-4.5 P-27ESect-4.5 P-28ESect-4.5 P-29ESect-4.5 P-30ESect-4.5 P-31ESect-4.5 P-32ESect-4.5 P-33ESect-4.5 P-34ESect-4.5 P-35ESect-4.5 P-36ESect-4.5 P-37ESect-4.5 P-38ESect-4.5 P-39ESect-4.5 P-40ESect-4.5 P-41ESect-4.5 P-42ESect-4.5 P-43ESect-4.5 P-44ESect-4.5 P-45ESect-4.5 P-46ESect-4.5 P-47ESect-4.5 P-48ESect-4.5 P-49ESect-4.5 P-50ESect-4.5 P-51ESect-4.5 P-52ESect-4.5 P-53ESect-4.5 P-54ESect-4.5 P-55ESect-4.5 P-56ESect-4.5 P-57ESect-4.5 P-58ESect-4.5 P-59ESect-4.5 P-60ESect-4.5 P-61ESect-4.5 P-62ESect-4.5 P-63ESect-4.5 P-64ESect-4.5 P-65ESect-4.5 P-66ESect-4.5 P-67ESect-4.5 P-68ESect-4.5 P-69ESect-4.5 P-70ESect-4.5 P-71ESect-4.5 P-72ESect-4.5 P-73ESect-4.5 P-74ESect-4.5 P-75ESect-4.5 P-76ESect-4.6 P-1ESect-4.6 P-2ESect-4.6 P-3ESect-4.6 P-4ESect-4.6 P-5ESect-4.6 P-6ESect-4.6 P-9ESect-4.6 P-10ESect-4.6 P-13ESect-4.6 P-14ESect-4.6 P-27ESect-4.6 P-28ESect-4.6 P-29ESect-4.6 P-30ESect-4.6 P-33ESect-4.6 P-34ESect-4.6 P-35ESect-4.6 P-38ESect-4.6 P-39ESect-4.6 P-40ESect-4.7 P-1ESect-4.7 P-2ESect-4.7 P-3ESect-4.7 P-4ESect-4.7 P-5ESect-4.7 P-6ESect-4.7 P-7ESect-4.7 P-8ESect-4.7 P-9ESect-4.7 P-10ESect-4.7 P-11ESect-4.7 P-12ESect-4.7 P-13ESect-4.7 P-14ESect-4.7 P-15ESect-4.7 P-16ESect-4.7 P-17ESect-4.7 P-18ESect-4.7 P-19ESect-4.7 P-20ESect-4.7 P-21ESect-4.7 P-22ESect-4.7 P-23ESect-4.7 P-24ESect-4.7 P-25ESect-4.7 P-26ESect-4.7 P-27ESect-4.7 P-28ESect-4.7 P-29ESect-4.7 P-30ESect-4.7 P-31ESect-4.7 P-32ESect-4.7 P-33ESect-4.7 P-34ESect-4.7 P-35ESect-4.7 P-36ESect-4.7 P-37ESect-4.7 P-38ESect-4.7 P-39ESect-4.7 P-40ESect-4.7 P-41ESect-4.7 P-42ESect-4.7 P-43ESect-4.7 P-44ESect-4.7 P-45ESect-4.7 P-46ESect-4.7 P-47ESect-4.7 P-48ESect-4.7 P-49ESect-4.7 P-50ESect-4.7 P-51ESect-4.7 P-52ESect-4.7 P-53ESect-4.7 P-54ESect-4.7 P-55ESect-4.7 P-56ESect-4.7 P-57ESect-4.7 P-58ESect-4.7 P-59ESect-4.7 P-60ESect-4.7 P-61ESect-4.7 P-62ESect-4.7 P-63ESect-4.7 P-64ESect-4.7 P-65ESect-4.7 P-66ESect-4.7 P-67ESect-4.7 P-68ESect-4.7 P-69ESect-4.7 P-70ESect-4.7 P-71ESect-4.7 P-72ESect-4.7 P-73ESect-4.7 P-74ESect-4.7 P-75ESect-4.7 P-76ESect-4.7 P-77ESect-4.7 P-78ESect-4.7 P-79ESect-4.7 P-80ESect-4.7 P-81ESect-4.7 P-82ESect-4.8 P-1ESect-4.8 P-2ESect-4.8 P-3ESect-4.8 P-4ESect-4.8 P-5ESect-4.8 P-6ESect-4.8 P-7ESect-4.8 P-8ESect-4.8 P-9ESect-4.8 P-10ESect-4.8 P-11ESect-4.8 P-12ESect-4.8 P-13ESect-4.8 P-14ESect-4.8 P-15ESect-4.8 P-16ESect-4.8 P-17ESect-4.8 P-18ESect-4.8 P-19ESect-4.8 P-20ESect-4.8 P-21ESect-4.8 P-22ESect-4.8 P-23ESect-4.8 P-24ESect-4.8 P-25ESect-4.8 P-26ESect-4.8 P-27ESect-4.8 P-29ESect-4.8 P-30ESect-4.8 P-32ESect-4.8 P-33ESect-4.8 P-34ESect-4.8 P-35ESect-4.8 P-36ESect-4.8 P-37ESect-4.8 P-39ESect-4.8 P-40ESect-4.8 P-41ESect-4.8 P-42ESect-4.9 P-1ESect-4.9 P-2ESect-4.9 P-3ESect-4.9 P-4ESect-4.9 P-5ESect-4.9 P-6ESect-4.9 P-7ESect-4.9 P-8ESect-4.9 P-9ESect-4.9 P-10ESect-4.9 P-11ESect-4.9 P-12ESect-4.9 P-13ESect-4.9 P-14ESect-4.9 P-15ESect-4.9 P-16ESect-4.9 P-17ESect-4.9 P-18ESect-4.9 P-19ESect-4.9 P-20ESect-4.9 P-21ESect-4.9 P-22ESect-4.9 P-25ESect-4.9 P-26ESect-4.9 P-27ESect-4.9 P-28ESect-4.9 P-29ESect-4.9 P-30ESect-4.9 P-31ESect-4.9 P-32ESect-4.9 P-33ESect-4.9 P-34ESect-4.9 P-35ESect-4.9 P-36ESect-4.9 P-37ESect-4.9 P-38ESect-4.9 P-39ESect-4.9 P-40ESect-4.9 P-41ESect-4.9 P-42ESect-4.9 P-43ESect-4.9 P-44ESect-4.9 P-45ESect-4.9 P-46ESect-4.9 P-47ESect-4.9 P-48ESect-4.9 P-49ESect-4.9 P-50ESect-4.9 P-51ESect-4.9 P-52ESect-4.9 P-53ESect-4.9 P-54ESect-4.9 P-55ESect-4.9 P-56ESect-4.9 P-57ESect-4.9 P-58ESect-4.9 P-59ESect-4.9 P-60ESect-4.9 P-61ESect-4.9 P-62ESect-4.9 P-63ESect-4.9 P-64ESect-4.9 P-65ESect-4.9 P-66ESect-4.9 P-67ESect-4.9 P-68ESect-4.9 P-69ESect-4.9 P-70ESect-4.9 P-71ESect-4.9 P-72ESect-4.9 P-73ESect-4.9 P-74ESect-4.9 P-75ESect-4.9 P-76ESect-4.9 P-77ESect-4.9 P-79ECh-4 P-1RCCCh-4 P-2RCCCh-4 P-3RCCCh-4 P-4RCCCh-4 P-5RCCCh-4 P-6RCCCh-4 P-7RCCCh-4 P-8RCCCh-4 P-9RCCCh-4 P-10RCCCh-4 P-11RCCCh-4 P-1RQCh-4 P-2RQCh-4 P-3RQCh-4 P-4RQCh-4 P-5RQCh-4 P-6RQCh-4 P-7RQCh-4 P-8RQCh-4 P-9RQCh-4 P-10RQCh-4 P-11RQCh-4 P-12RQCh-4 P-13RQCh-4 P-14RQCh-4 P-15RQCh-4 P-16RQCh-4 P-17RQCh-4 P-18RQCh-4 P-19RQCh-4 P-20RQCh-4 P-21RQCh-4 P-1RECh-4 P-2RECh-4 P-3RECh-4 P-4RECh-4 P-5RECh-4 P-6RECh-4 P-7RECh-4 P-8RECh-4 P-9RECh-4 P-10RECh-4 P-11RECh-4 P-12RECh-4 P-13RECh-4 P-14RECh-4 P-15RECh-4 P-16RECh-4 P-17RECh-4 P-18RECh-4 P-19RECh-4 P-20RECh-4 P-21RECh-4 P-22RECh-4 P-23RECh-4 P-24RECh-4 P-25RECh-4 P-26RECh-4 P-27RECh-4 P-28RECh-4 P-29RECh-4 P-30RECh-4 P-31RECh-4 P-32RECh-4 P-33RECh-4 P-34RECh-4 P-35RECh-4 P-36RECh-4 P-37RECh-4 P-38RECh-4 P-39RECh-4 P-43RECh-4 P-44RECh-4 P-45RECh-4 P-46RECh-4 P-47RECh-4 P-48RECh-4 P-49RECh-4 P-50RECh-4 P-51RECh-4 P-52RECh-4 P-53RECh-4 P-54RECh-4 P-55RECh-4 P-56RECh-4 P-57RECh-4 P-58RECh-4 P-59RECh-4 P-60RECh-4 P-61RECh-4 P-62RECh-4 P-63RECh-4 P-64RECh-4 P-65RECh-4 P-66RECh-4 P-67RECh-4 P-68RECh-4 P-69RECh-4 P-70RECh-4 P-71RECh-4 P-72RECh-4 P-73RECh-4 P-74RECh-4 P-75RECh-4 P-76RECh-4 P-77RECh-4 P-78RECh-4 P-79RECh-4 P-80RECh-4 P-81RECh-4 P-82RECh-4 P-83RECh-4 P-84RECh-4 P-85RECh-4 P-86RECh-4 P-1PCh-4 P-2PCh-4 P-3PCh-4 P-4PCh-4 P-5PCh-4 P-6PCh-4 P-7PCh-4 P-8PCh-4 P-9PCh-4 P-10PCh-4 P-11PCh-4 P-12PCh-4 P-13PCh-4 P-14PCh-4 P-15PCh-4 P-16PCh-4 P-17PCh-4 P-18PCh-4 P-19PCh-4 P-20PCh-4 P-21PCh-4 P-22PCh-4 P-23PCh-4 P-25PCh-4 P-26P

Additional Math Solutions

Find more solutions based on key concepts

Show solutions add

What is the lowest score in the following distribution?

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

In Exercises 9-16, complete the table by computing f(x) at the given values of x. Use these results to estimate...

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

What is an increasing function?

Single Variable Calculus

Find the slope of the line through P and Q. 7. P(1, 5), Q(4, 11)

Single Variable Calculus: Early Transcendentals

In Exercises 14, write the set in set-builder notation. {1,3,5,7,9,11,...,39}

Finite Mathematics for the Managerial, Life, and Social Sciences

Evaluate dx using the Fundamental Theorem of Calculus. 6 12 18 24

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

Analyze the following numbers. 0.802

Mathematics For Machine Technology