u'v- u Use Quotient Rule to find f'(r). My version of Quotient Rule is So we have u3 and 1+ f'(z) = 2x(1+e*) - x2(e*) _ 2x +2xe* - x2e# | (1e)2 f(r)= + (1 e)? Use Quotient Rule again to find f"(x). For the derivative of the last two terms in the numerator, we will use Product Rule (since it's a product). My version of Product Rule is (uv = u'v+ uv'. So we have f(r) (1e)2 2+(2e +2.xe#) - (2.xe# + x?e#)](1 + e#)? - (2x+ 2xe# = x?e#) |2(1 + e#)(e#)] (1 e)4 1+ e#) - 2e (2.x + 2xe" - x?e") " (2 2e- (1 e)3 2 2e 2 2e2 (1)3 - e# +2e2r _ 4xe2* + x2e2 (1+e")3 2 4e 4

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
icon
Concept explainers
Question
100%

This is solving the 2nd derivative of f(x) = x^2/ 1+e^x, and we have already obtained the 1st derivative which is

f'(x) = (2x + 2e^(x) x - x^2 e^x) / (1 + e^x)^2

on the screenshot provided I don't understand how the derivative of 2xe^x works, this confuses me.

u'v- u
Use Quotient Rule to find f'(r). My version of Quotient Rule is
So we have
u3 and 1+ f'(z) = 2x(1+e*) - x2(e*) _ 2x +2xe* - x2e# |
(1e)2
f(r)= +
(1 e)?
Use Quotient Rule again to find f"(x). For the derivative of the last two
terms in the numerator, we will use Product Rule (since it's a product). My
version of Product Rule is (uv = u'v+ uv'. So we have
f(r)
(1e)2
2+(2e +2.xe#) - (2.xe# + x?e#)](1 + e#)? - (2x+ 2xe# = x?e#) |2(1 + e#)(e#)]
(1 e)4
1+ e#) - 2e (2.x + 2xe" - x?e")
"
(2 2e-
(1 e)3
2 2e 2 2e2
(1)3
- e# +2e2r _ 4xe2* + x2e2
(1+e")3
2 4e
4
Transcribed Image Text:u'v- u Use Quotient Rule to find f'(r). My version of Quotient Rule is So we have u3 and 1+ f'(z) = 2x(1+e*) - x2(e*) _ 2x +2xe* - x2e# | (1e)2 f(r)= + (1 e)? Use Quotient Rule again to find f"(x). For the derivative of the last two terms in the numerator, we will use Product Rule (since it's a product). My version of Product Rule is (uv = u'v+ uv'. So we have f(r) (1e)2 2+(2e +2.xe#) - (2.xe# + x?e#)](1 + e#)? - (2x+ 2xe# = x?e#) |2(1 + e#)(e#)] (1 e)4 1+ e#) - 2e (2.x + 2xe" - x?e") " (2 2e- (1 e)3 2 2e 2 2e2 (1)3 - e# +2e2r _ 4xe2* + x2e2 (1+e")3 2 4e 4
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 6 images

Blurred answer
Knowledge Booster
Application of Integration
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
  • SEE MORE 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