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Recent questions in Differential Equations
Questions
>>
JEEMAIN and NEET
>>
Mathematics
>>
Class12
>>
Differential Equations
If
x
=
sec
θ
−
cos
θ
and
y
=
sec
n
θ
−
cos
n
θ
then
(
d
y
d
x
)
2
=
jeemain
math
class12
ch9
differential-equations
linear-differential-equations
q6
difficult
asked
Jan 31, 2014
by
meena.p
1
answer
If
x
=
cos
−
1
(
1
√
1
+
t
2
)
and
y
=
sin
−
1
(
1
√
1
+
t
2
)
then
d
y
d
x
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q5
medium
asked
Jan 31, 2014
by
meena.p
1
answer
If
x
2
+
y
2
=
t
−
1
t
,
x
4
+
y
4
=
t
2
+
1
t
2
then
d
y
d
x
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q4
medium
asked
Jan 31, 2014
by
meena.p
1
answer
If
ϕ
(
x
)
=
f
(
x
)
g
(
x
)
,
where
f
′
(
x
)
g
′
(
x
)
=
c
and
ϕ
″
ϕ
=
f
″
f
+
g
″
g
+
K
c
f
g
then value of K.
jeemain
math
class12
ch9
differential-equations
homogeneous-differential-equations
q3
medium
asked
Jan 31, 2014
by
meena.p
1
answer
Assertion : For the following equation degree
d
4
d
x
4
+
sin
(
d
2
y
d
x
2
)
=
0
Reason : Order of DE is the order of highest differentiate coefficient occurring in the equation
jeemain
math
class12
ch7
differential-equations
degree-of-a-differential-equation
q2
difficult
asked
Jan 31, 2014
by
meena.p
1
answer
Solution of differential equation:
X
2
=
1
+
1
2
(
x
y
)
−
1
d
y
d
x
+
(
x
y
)
−
2
(
d
y
d
x
)
2
4
×
2
×
1
+
(
x
y
)
−
3
(
d
y
d
x
)
3
8
×
3
×
2
×
1
+
(
x
y
)
−
4
(
d
y
d
x
)
4
16
×
4
×
3
×
2
×
1
+
.
.
.
.
.
.
.
.
.
.
jeemain
math
class12
unit9
differential-equations
solving-using-separation-of-variables
q1
difficult
asked
Jan 31, 2014
by
meena.p
1
answer
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