10. Show that if f is homogeneous of degree n, then r* fn + 2ryfzy + y° fy = n(n – 1)f(x, y). (A function f is called homogeneous of degree n if it satisfies the equation f(tx, ty) = t" f(x, y) for all t, where n is a positive integer and f has continuous second order partial derivatives).

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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10. Show that if f is homogeneous of degree n, then
z* fz + 2.ry fay + y° fyy = n(n – 1)f(r, y).
(A function f is called homogeneous of degree n if it satisfies the equation
f(tr, ty) = t" f(x, y) for all t, where n is a positive integer and f has continuous second
order partial derivatives).
Transcribed Image Text:10. Show that if f is homogeneous of degree n, then z* fz + 2.ry fay + y° fyy = n(n – 1)f(r, y). (A function f is called homogeneous of degree n if it satisfies the equation f(tr, ty) = t" f(x, y) for all t, where n is a positive integer and f has continuous second order partial derivatives).
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