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Mathematics
Problem
The integrating factor of the differential equation
x
d
y
d
x
−
y
=
2
x
2
x \frac{dy}{dx} - y = 2x^2
x
d
x
d
y
−
y
=
2
x
2
is (A)
e
−
x
e^{-x}
e
−
x
(B)
e
−
y
e^{-y}
e
−
y
(C)
1
x
\frac{1}{x}
x
1
(D)
x
x
x
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