
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:1. Given constants a and b and function u defined by
u(x, y) =
ay
f(x² - y²)
show by substitution that
1 du
x əx
+
1 Ju U
у ду
+b,
holds for any differentiable function f, if b is chosen appropriately.
What is this value of b?
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