لام Show that if f and harmonic then f must be a constant. are both
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![لام
Show that if f and
harmonic then f must be a constant.
are both](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcfb559b8-dfdd-40e5-a8f0-3af73244181f%2Fb81843d5-12e4-470b-966c-3d3f2650384f%2Fnzik1l9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:لام
Show that if f and
harmonic then f must be a constant.
are both
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I don't understand why d/dx(d/dx(f^2))=d/dx(d/dx(2f)*(df/dx)). Please explain. Thank you
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