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The first-order equation 2x^(2)u(du)/(dx)+xu^(2)+2=0 is an example of an isobaric equation for which there's a value of m (called the weight) such that u
The first-order equation\
2x^(2)u(du)/(dx)+xu^(2)+2=0
\ is an example of an "isobaric" equation for which there's a value of
m
(called the weight)\ such that
u
has the same dimension as
x^(m)
. The allows the equation to be rendered\ separable with the substitution of the dimensionless
v(x)=u(x)/(x^(m))
in place of
u
.\ a. (10 points) Confirm that the equation is isobaric by substituting
v(x)
and determining\ the value of
m
for which the equation is separable.
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