Let f, g: R → R be continuous at a point c, and let h(x) = sup{f(x), g(x)} for x € R. Show that h(x) = (f(x) + g(x)) + ½ |ƒf(x) − g(x) for all x € R. Use this to show that h is continuous at c.
Let f, g: R → R be continuous at a point c, and let h(x) = sup{f(x), g(x)} for x € R. Show that h(x) = (f(x) + g(x)) + ½ |ƒf(x) − g(x) for all x € R. Use this to show that h is continuous at c.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
![Let \( f, g : \mathbb{R} \to \mathbb{R} \) be continuous at a point \( c \), and let \( h(x) := \sup \{ f(x), g(x) \} \) for \( x \in \mathbb{R} \). Show that
\[ h(x) = \frac{1}{2}(f(x) + g(x)) + \frac{1}{2}|f(x) - g(x)| \]
for all \( x \in \mathbb{R} \). Use this to show that \( h \) is continuous at \( c \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe57a7d70-87de-4a1f-8104-5b2578062c6c%2F95dd242b-e57d-4b13-a8d5-1434f6744fe4%2Fqm22ty_processed.png&w=3840&q=75)
Transcribed Image Text:Let \( f, g : \mathbb{R} \to \mathbb{R} \) be continuous at a point \( c \), and let \( h(x) := \sup \{ f(x), g(x) \} \) for \( x \in \mathbb{R} \). Show that
\[ h(x) = \frac{1}{2}(f(x) + g(x)) + \frac{1}{2}|f(x) - g(x)| \]
for all \( x \in \mathbb{R} \). Use this to show that \( h \) is continuous at \( c \).
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images

Recommended textbooks for you

Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated

Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY

Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated

Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY

Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,

