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Mathematics
Mathematics
Problem
Solve the differential equation
(
x
2
+
x
y
)
d
y
=
(
x
2
+
y
2
)
d
x
(x^2 + xy) dy = (x^2 + y^2) dx
(
x
2
+
x
y
)
d
y
=
(
x
2
+
y
2
)
d
x
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