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
3 views

57095-12.4-17E-Question-Digital.docx

Finding the Principal Unit Normal Vector In Exercises 13-20, find the principal unit normal vector to the curve at the specified value of the parameter.

r ( t ) = t i + t 2 j + ln t k , t = 1

To determine

To calculate: The principal unit normal vector to the curve r(t)=ti+t2j+logtk at t=1.

Explanation

Given:

The vector, r(t)=ti+t2j+logtk and a point t=1.

Formula used:

Unit normal vector N(t) to the curve, r(t) is given by,

N(t)=T(t)T(t) where T(t)=r(t)r(t) is the unit tangent vector.

Calculation:

Consider the vector, r(t)=logti+(t+1)j.

Now, use the formula, T(t)=r(t)r(t) to find the tangent vector to the curve r(t)=ti+t2j+logtk.

First calculate, r(t).

So, r(t)=i+2tj+1tk.

Now calculate, r(t).

So,

r(t)=12+(2t)2+(1t)2=t2+4t4+1t2=4t4+t2+1t

Now put, r(t)=1ti+j and r(t) in the formula, T(t)=r(t)r(t).

So,

T(t)=i+2tj+1tk4t4+t2+1t=t4t4+t2+1i+2t24t4+t2+1j+14t4+t2+1k

Now, calculate, T(t).

So,

T(t)=[(4t4+t2+1(1)t24t4+t2+1(16t3+2t)(4t4+t2+1)2)i+(4t4+t2+1(4t)2t224t4+t2+1(16t3+2t)(4t4+t2+1)2)j(16t3+2t2(4t4+t2+1)32)k]=(8t4+22(4t4+t2+1)32)i+(4t3+8t2(4t4+t2+1)32)j(16t3+2t2(4t4+t2+1)32)k

So,

T(t)=(8t4+22(4t4+t2+1)32)2+(4t3+8t2(4t4+t2+1)32)2+(16t3+2t2(4t4+t2+1)32)2

Now use the formula, N(t)=T(t)T(t) to find the unit normal vector

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

25-42 Differentiate the function. y=(cosx)x

Calculus (MindTap Course List)

In Exercises 27-30, find an equation of the line that passes through the point and has the indicated slope m. 2...

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

Evaluate the expression sin Exercises 116. (2)3

Finite Mathematics and Applied Calculus (MindTap Course List)

In Exercises 9 and 10, find the limit. limx3(2x23x+4)

Calculus: An Applied Approach (MindTap Course List)

Add: (10)+(6)

Elementary Technical Mathematics

The graph at the right has equation:

Study Guide for Stewart's Multivariable Calculus, 8th

The graph of is: a) b) c) d)

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

Define a ceiling effect and a floor effect and explain how they can interfere with measurement.

Research Methods for the Behavioral Sciences (MindTap Course List)