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Question
Mathematics
The order of the differential equation obtained by eliminating arbitrary constants in the family of curves c1y = (c2 +c3 )ex+c4 is
Q. The order of the differential equation obtained by eliminating arbitrary constants in the family of curves
c
1
y
=
(
c
2
+
c
3
)
e
x
+
c
4
is
4900
172
KCET
KCET 2020
Differential Equations
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A
1
43%
B
2
17%
C
3
9%
D
4
30%
Solution:
(
y
=
[(
C
1
C
2
+
C
3
)
e
C
4
]
e
x
=
A
e
x
,
)
where
A
=
(
(
C
1
C
2
+
C
3
)
e
C
4
)
Order = Number of independent arbitrary constants
=
1