(dy = arctan dx, (i) Use the facts: dy and (dy/dt) to find dt d dx (dx/dt) ds (ii) Use the fact that s(t) = *² + ÿ² dt to find dt to dø (аф/dt) (iii) Apply the Chain Rule to conclude that ds (ds/dt) (b) By regarding a curve y=f (x) as the parametric curve: x= x , y=f(x ), with parameter x, show that the formula from part (a) reduces to |d²y/dx² | K = [1 + (dy/dx)² ]3/2 *

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
icon
Related questions
Topic Video
Question
100%

The problem is rather long so I have attached pictures of the instructions below.

dø
The curvature at a point P of a curve is defined as K =
ds
where o is the angle of inclination of the tangent line at P, as shown in the figure.
Thus, the curvature is the absolute value of the rate of change of ¢ with respect
to arc length. It can also be
regarded as a measure of the rate
of change of the direction of the
yA
curve at P.
(a) For the parametric curve
x = x ( t), y=y ( t ),
derive the formula
|à ÿ – * ỷ|
[x2 + y?]3/2
K =
dx
where the dots indicate the order of the derivative with respect to t, so =
dt
To accomplish this task, carry out the following steps:
Transcribed Image Text:dø The curvature at a point P of a curve is defined as K = ds where o is the angle of inclination of the tangent line at P, as shown in the figure. Thus, the curvature is the absolute value of the rate of change of ¢ with respect to arc length. It can also be regarded as a measure of the rate of change of the direction of the yA curve at P. (a) For the parametric curve x = x ( t), y=y ( t ), derive the formula |à ÿ – * ỷ| [x2 + y?]3/2 K = dx where the dots indicate the order of the derivative with respect to t, so = dt To accomplish this task, carry out the following steps:
dø
to find
dt
(dy/dt)
(i) Use the facts:
´dy`
= arctan
\dx,
dy
and
dx
(dx/dt)
ds
(ii) Use the fact that s(t) = |
*2 + y2 dt to find
dt
dø
(dф/dt)
(iii) Apply the Chain Rule to conclude that
ds
(ds/dt)
(b) By regarding a curve y= f(x) as the parametric curve: x= x , y=f(x ),
with parameter x ,
show that the formula from part (a) reduces to
|d?y/dx? |
K =
[1 + (dy/dx)² ]3/2 *
Transcribed Image Text:dø to find dt (dy/dt) (i) Use the facts: ´dy` = arctan \dx, dy and dx (dx/dt) ds (ii) Use the fact that s(t) = | *2 + y2 dt to find dt dø (dф/dt) (iii) Apply the Chain Rule to conclude that ds (ds/dt) (b) By regarding a curve y= f(x) as the parametric curve: x= x , y=f(x ), with parameter x , show that the formula from part (a) reduces to |d?y/dx? | K = [1 + (dy/dx)² ]3/2 *
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Knowledge Booster
Propositional Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Precalculus
Precalculus
Calculus
ISBN:
9780135189405
Author:
Michael Sullivan
Publisher:
PEARSON
Calculus: Early Transcendental Functions
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning