2²h Q2: Show that + əs² = * ər 2²h at=0 if h(s, t) = ln(√s² + t²) 8ºf (x² + y)² 8ª²f → (x² + y²) (x²+)

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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2²h
Q2: Show that + at=0 if
2²h
əs²
8ºf
x= x+y+y=x+y = (x + y)²
Əy
.
h(s, t) = ln(√s² + t²)
y²-x²
<=0
y²) (x² + y)²
aºf
= (X+Y) = 0 + 0 = (x²+x +
Transcribed Image Text:2²h Q2: Show that + at=0 if 2²h əs² 8ºf x= x+y+y=x+y = (x + y)² Əy . h(s, t) = ln(√s² + t²) y²-x² <=0 y²) (x² + y)² aºf = (X+Y) = 0 + 0 = (x²+x +
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