BuyFindarrow_forward

Calculus

10th Edition
Ron Larson + 1 other
ISBN: 9781285057095

Solutions

Chapter
Section
BuyFindarrow_forward

Calculus

10th Edition
Ron Larson + 1 other
ISBN: 9781285057095
Textbook Problem

Using Two MethodsIn Exercises 37 and 38, find (a) d d t [ r ( t ) u ( t ) ] and (b) d d t [ r ( t ) × u ( t ) ] in two different ways.

(i) Find the product first, then differentiate.

(ii) Apply the properties of Theorem 12.2.

r ( t ) = cos t i + sin t j + t k , u ( t ) = j + t k

(a)

To determine

To calculate: The expression ddt[r(t)u(t)] for the functions r(t)=costi+sintj+tk and u(t)=j+tk.

Explanation

Given:

The functions:

r(t)=costi+sintj+tk and u(t)=j+tk

Formula used:

Let r and u be differentiable functions vector-valued functions of t, let w be a differentiable real valued functions of t, and let c be a scalar, then

1. ddt[cr(t)]=cr'(t)

2. ddt[r(t)×u(t)]=r(t)×u'(t)+r'(t)×u(t)

3. ddt[r(t)±u(t)]=r'(t)±u'(t)

4. ddt[r(t)u(t)]=r(t)u'(t)+r'(t)u(t)

5. ddt[r(t)u(t)]=r(t)u'(t)+r'(t)u(t)

If v1=x1i+y1j+z1k and v2=x2i+y2j+z2k are two vectors.

Then, dot product is given as:

v1v2=(x1i+y1j+z1k)(x2i+y2j+z2k)=x1x2+y1y2+z1z2

Calculation:

(i)

Consider the following functions:

r(t)=costi+sintj+tk and u(t)=j+tk

Evaluate the dot product of r(t) and  u(t) and obtain the following result:

r(t)u(t)=(costi+sintj+tk)(j+tk)=cost(0)+sint(1)+t2=sint+t2

Differentiate the function r(t) with respect to t and get:

ddt(r(t)u(t))=ddt(sint+t2)=cost+2t

Hence, the value of ddt[r(t)u(t)] is cost+2t

(b)

To determine

To calculate: The expression ddt[r(t)×u(t)] for the vectors r(t)=costi+sintj+tk and u(t)=j+tk.

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

Chapter 12 Solutions

Show all chapter solutions add
Sect-12.1 P-11ESect-12.1 P-12ESect-12.1 P-13ESect-12.1 P-14ESect-12.1 P-15ESect-12.1 P-16ESect-12.1 P-17ESect-12.1 P-18ESect-12.1 P-19ESect-12.1 P-20ESect-12.1 P-21ESect-12.1 P-22ESect-12.1 P-23ESect-12.1 P-24ESect-12.1 P-25ESect-12.1 P-26ESect-12.1 P-27ESect-12.1 P-28ESect-12.1 P-29ESect-12.1 P-30ESect-12.1 P-31ESect-12.1 P-32ESect-12.1 P-33ESect-12.1 P-34ESect-12.1 P-35ESect-12.1 P-36ESect-12.1 P-37ESect-12.1 P-38ESect-12.1 P-39ESect-12.1 P-42ESect-12.1 P-41ESect-12.1 P-40ESect-12.1 P-43ESect-12.1 P-44ESect-12.1 P-45ESect-12.1 P-46ESect-12.1 P-47ESect-12.1 P-48ESect-12.1 P-49ESect-12.1 P-50ESect-12.1 P-51ESect-12.1 P-52ESect-12.1 P-53ESect-12.1 P-54ESect-12.1 P-55ESect-12.1 P-56ESect-12.1 P-57ESect-12.1 P-58ESect-12.1 P-59ESect-12.1 P-60ESect-12.1 P-61ESect-12.1 P-62ESect-12.1 P-63ESect-12.1 P-64ESect-12.1 P-65ESect-12.1 P-66ESect-12.1 P-67ESect-12.1 P-68ESect-12.1 P-69ESect-12.1 P-70ESect-12.1 P-71ESect-12.1 P-72ESect-12.1 P-73ESect-12.1 P-74ESect-12.1 P-75ESect-12.1 P-76ESect-12.1 P-77ESect-12.1 P-78ESect-12.1 P-79ESect-12.1 P-80ESect-12.1 P-81ESect-12.1 P-82ESect-12.1 P-83ESect-12.1 P-84ESect-12.1 P-85ESect-12.1 P-86ESect-12.1 P-87ESect-12.1 P-88ESect-12.1 P-89ESect-12.1 P-90ESect-12.1 P-91ESect-12.1 P-92ESect-12.1 P-93ESect-12.1 P-94ESect-12.2 P-1ESect-12.2 P-2ESect-12.2 P-3ESect-12.2 P-4ESect-12.2 P-5ESect-12.2 P-6ESect-12.2 P-7ESect-12.2 P-8ESect-12.2 P-9ESect-12.2 P-10ESect-12.2 P-11ESect-12.2 P-12ESect-12.2 P-13ESect-12.2 P-14ESect-12.2 P-15ESect-12.2 P-16ESect-12.2 P-17ESect-12.2 P-18ESect-12.2 P-19ESect-12.2 P-20ESect-12.2 P-21ESect-12.2 P-22ESect-12.2 P-23ESect-12.2 P-24ESect-12.2 P-25ESect-12.2 P-26ESect-12.2 P-27ESect-12.2 P-28ESect-12.2 P-29ESect-12.2 P-30ESect-12.2 P-31ESect-12.2 P-32ESect-12.2 P-33ESect-12.2 P-34ESect-12.2 P-35ESect-12.2 P-36ESect-12.2 P-37ESect-12.2 P-38ESect-12.2 P-39ESect-12.2 P-40ESect-12.2 P-41ESect-12.2 P-42ESect-12.2 P-43ESect-12.2 P-44ESect-12.2 P-45ESect-12.2 P-46ESect-12.2 P-47ESect-12.2 P-49ESect-12.2 P-48ESect-12.2 P-50ESect-12.2 P-51ESect-12.2 P-52ESect-12.2 P-53ESect-12.2 P-54ESect-12.2 P-55ESect-12.2 P-56ESect-12.2 P-57ESect-12.2 P-58ESect-12.2 P-59ESect-12.2 P-60ESect-12.2 P-61ESect-12.2 P-62ESect-12.2 P-65ESect-12.2 P-64ESect-12.2 P-63ESect-12.2 P-66ESect-12.2 P-67ESect-12.2 P-68ESect-12.2 P-69ESect-12.2 P-70ESect-12.2 P-71ESect-12.2 P-72ESect-12.2 P-73ESect-12.2 P-74ESect-12.2 P-75ESect-12.2 P-76ESect-12.2 P-77ESect-12.2 P-78ESect-12.2 P-79ESect-12.2 P-80ESect-12.2 P-81ESect-12.2 P-82ESect-12.3 P-1ESect-12.3 P-2ESect-12.3 P-3ESect-12.3 P-4ESect-12.3 P-5ESect-12.3 P-6ESect-12.3 P-7ESect-12.3 P-8ESect-12.3 P-9ESect-12.3 P-10ESect-12.3 P-11ESect-12.3 P-12ESect-12.3 P-13ESect-12.3 P-14ESect-12.3 P-15ESect-12.3 P-16ESect-12.3 P-17ESect-12.3 P-18ESect-12.3 P-19ESect-12.3 P-20ESect-12.3 P-21ESect-12.3 P-22ESect-12.3 P-23ESect-12.3 P-24ESect-12.3 P-25ESect-12.3 P-26ESect-12.3 P-27ESect-12.3 P-28ESect-12.3 P-29ESect-12.3 P-30ESect-12.3 P-31ESect-12.3 P-32ESect-12.3 P-33ESect-12.3 P-34ESect-12.3 P-35ESect-12.3 P-36ESect-12.3 P-37ESect-12.3 P-38ESect-12.3 P-39ESect-12.3 P-40ESect-12.3 P-41ESect-12.3 P-42ESect-12.3 P-43ESect-12.3 P-44ESect-12.3 P-45ESect-12.3 P-46ESect-12.3 P-47ESect-12.3 P-48ESect-12.3 P-49ESect-12.3 P-50ESect-12.3 P-51ESect-12.3 P-52ESect-12.3 P-53ESect-12.3 P-54ESect-12.3 P-56ESect-12.3 P-57ESect-12.3 P-55ESect-12.3 P-58ESect-12.3 P-59ESect-12.3 P-60ESect-12.3 P-61ESect-12.3 P-62ESect-12.4 P-44ESect-12.4 P-1ESect-12.4 P-2ESect-12.4 P-3ESect-12.4 P-4ESect-12.4 P-5ESect-12.4 P-6ESect-12.4 P-7ESect-12.4 P-8ESect-12.4 P-9ESect-12.4 P-10ESect-12.4 P-11ESect-12.4 P-12ESect-12.4 P-13ESect-12.4 P-14ESect-12.4 P-15ESect-12.4 P-16ESect-12.4 P-17ESect-12.4 P-18ESect-12.4 P-19ESect-12.4 P-20ESect-12.4 P-33ESect-12.4 P-34ESect-12.4 P-35ESect-12.4 P-36ESect-12.4 P-21ESect-12.4 P-22ESect-12.4 P-23ESect-12.4 P-24ESect-12.4 P-25ESect-12.4 P-26ESect-12.4 P-27ESect-12.4 P-28ESect-12.4 P-29ESect-12.4 P-30ESect-12.4 P-31ESect-12.4 P-32ESect-12.4 P-37ESect-12.4 P-38ESect-12.4 P-39ESect-12.4 P-40ESect-12.4 P-41ESect-12.4 P-42ESect-12.4 P-43ESect-12.4 P-45ESect-12.4 P-46ESect-12.4 P-47ESect-12.4 P-48ESect-12.4 P-49ESect-12.4 P-50ESect-12.4 P-51ESect-12.4 P-52ESect-12.4 P-53ESect-12.4 P-54ESect-12.4 P-55ESect-12.4 P-56ESect-12.4 P-57ESect-12.4 P-58ESect-12.4 P-59ESect-12.4 P-60ESect-12.4 P-61ESect-12.4 P-62ESect-12.4 P-63ESect-12.4 P-64ESect-12.4 P-65ESect-12.4 P-66ESect-12.4 P-67ESect-12.4 P-68ESect-12.4 P-69ESect-12.4 P-70ESect-12.4 P-71ESect-12.4 P-72ESect-12.4 P-73ESect-12.4 P-74ESect-12.4 P-75ESect-12.4 P-76ESect-12.4 P-77ESect-12.4 P-78ESect-12.4 P-79ESect-12.4 P-80ESect-12.5 P-1ESect-12.5 P-2ESect-12.5 P-3ESect-12.5 P-4ESect-12.5 P-5ESect-12.5 P-6ESect-12.5 P-7ESect-12.5 P-8ESect-12.5 P-9ESect-12.5 P-10ESect-12.5 P-11ESect-12.5 P-12ESect-12.5 P-13ESect-12.5 P-14ESect-12.5 P-15ESect-12.5 P-17ESect-12.5 P-16ESect-12.5 P-18ESect-12.5 P-19ESect-12.5 P-20ESect-12.5 P-21ESect-12.5 P-22ESect-12.5 P-23ESect-12.5 P-24ESect-12.5 P-25ESect-12.5 P-26ESect-12.5 P-27ESect-12.5 P-28ESect-12.5 P-29ESect-12.5 P-30ESect-12.5 P-31ESect-12.5 P-32ESect-12.5 P-33ESect-12.5 P-34ESect-12.5 P-35ESect-12.5 P-36ESect-12.5 P-37ESect-12.5 P-38ESect-12.5 P-39ESect-12.5 P-40ESect-12.5 P-41ESect-12.5 P-42ESect-12.5 P-43ESect-12.5 P-44ESect-12.5 P-45ESect-12.5 P-46ESect-12.5 P-47ESect-12.5 P-48ESect-12.5 P-49ESect-12.5 P-50ESect-12.5 P-51ESect-12.5 P-52ESect-12.5 P-53ESect-12.5 P-54ESect-12.5 P-55ESect-12.5 P-56ESect-12.5 P-57ESect-12.5 P-58ESect-12.5 P-59ESect-12.5 P-60ESect-12.5 P-61ESect-12.5 P-62ESect-12.5 P-63ESect-12.5 P-64ESect-12.5 P-65ESect-12.5 P-66ESect-12.5 P-67ESect-12.5 P-68ESect-12.5 P-69ESect-12.5 P-70ESect-12.5 P-71ESect-12.5 P-72ESect-12.5 P-73ESect-12.5 P-74ESect-12.5 P-75ESect-12.5 P-76ESect-12.5 P-77ESect-12.5 P-78ESect-12.5 P-79ESect-12.5 P-80ESect-12.5 P-81ESect-12.5 P-82ESect-12.5 P-83ESect-12.5 P-84ESect-12.5 P-85ESect-12.5 P-86ESect-12.5 P-87ESect-12.5 P-88ESect-12.5 P-89ESect-12.5 P-90ESect-12.5 P-91ESect-12.5 P-92ESect-12.5 P-93ESect-12.5 P-94ESect-12.5 P-95ESect-12.5 P-96ECh-12 P-1RECh-12 P-2RECh-12 P-3RECh-12 P-4RECh-12 P-5RECh-12 P-6RECh-12 P-7RECh-12 P-8RECh-12 P-9RECh-12 P-10RECh-12 P-11RECh-12 P-12RECh-12 P-13RECh-12 P-14RECh-12 P-15RECh-12 P-16RECh-12 P-17RECh-12 P-18RECh-12 P-19RECh-12 P-20RECh-12 P-21RECh-12 P-22RECh-12 P-23RECh-12 P-24RECh-12 P-25RECh-12 P-26RECh-12 P-27RECh-12 P-28RECh-12 P-29RECh-12 P-30RECh-12 P-31RECh-12 P-32RECh-12 P-33RECh-12 P-34RECh-12 P-35RECh-12 P-36RECh-12 P-37RECh-12 P-38RECh-12 P-39RECh-12 P-40RECh-12 P-41RECh-12 P-42RECh-12 P-43RECh-12 P-44RECh-12 P-45RECh-12 P-46RECh-12 P-47RECh-12 P-48RECh-12 P-49RECh-12 P-50RECh-12 P-51RECh-12 P-52RECh-12 P-53RECh-12 P-54RECh-12 P-55RECh-12 P-56RECh-12 P-57RECh-12 P-58RECh-12 P-59RECh-12 P-60RECh-12 P-61RECh-12 P-62RECh-12 P-63RECh-12 P-64RECh-12 P-65RECh-12 P-66RECh-12 P-67RECh-12 P-68RECh-12 P-69RECh-12 P-70RECh-12 P-71RECh-12 P-1PSCh-12 P-2PSCh-12 P-3PSCh-12 P-4PSCh-12 P-5PSCh-12 P-6PSCh-12 P-7PSCh-12 P-8PSCh-12 P-9PSCh-12 P-10PSCh-12 P-11PSCh-12 P-12PSCh-12 P-13PSCh-12 P-14PS

Additional Math Solutions

Find more solutions based on key concepts

Show solutions add

63-78 Evaluate the limit. limx0ex1tanx

Calculus (MindTap Course List)

Cost of Renting a Truck Ace Truck leases its 10-ft box truck at 30/day and 0.45/mi, whereas Acme Truck leases a...

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

In words, explain what is measured by SS, variance, and standard deviation.

Statistics for The Behavioral Sciences (MindTap Course List)

Find the limit. 34. limx3x+6xx33x2

Single Variable Calculus

A parameterization of the curve at the right is:

Study Guide for Stewart's Multivariable Calculus, 8th

If 2x + 2 ≤ f(x) ≤ x2 + 3 for all x, then =_____. 1 4 does not exist exists but cannot be determined from the ...

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

How is the descriptive strategy different from the other four research strategies?

Research Methods for the Behavioral Sciences (MindTap Course List)