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NDA Math Differential Equation
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© examsnet.com
Question : 38
Total: 70
The general solution of
d
y
d
x
=
a
x
+
h
b
y
+
k
represents a circle only when
[NDA II 2017]
a
=
b
=
0
a
=
−
b
≠
0
a
=
b
≠
0
,
h
=
k
a
=
b
≠
0
Validate
Solution:
d
y
d
x
=
a
x
+
h
b
y
+
k
∫
(
b
y
+
k
)
d
y
=
∫
(
a
x
+
h
)
d
x
b
y
2
2
+
k
y
=
a
x
2
2
+
h
x
+
c
a
x
2
2
−
b
y
2
2
+
h
x
−
k
y
+
c
=
0
a
=
−
b
≠
0
© examsnet.com
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