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Byju's Answer
Standard XII
Mathematics
Properties of Composite Function
If y=5x/ 1-...
Question
If
y
=
5
x
(
1
−
x
)
2
/
3
+
cos
2
(
2
x
+
1
)
,
find
d
y
d
x
.
A
5
3
(
1
−
x
)
5
/
9
(
3
−
x
)
−
2
sin
(
4
x
+
2
)
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B
−
5
3
(
1
−
x
)
5
/
9
(
3
−
x
)
−
2
sin
(
4
x
+
2
)
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C
4
3
(
1
−
x
)
5
/
9
(
3
−
x
)
−
2
sin
(
4
x
+
2
)
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D
5
3
(
1
−
x
)
5
/
9
(
3
−
x
)
−
sin
(
4
x
+
2
)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
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Solution
The correct option is
A
5
3
(
1
−
x
)
5
/
9
(
3
−
x
)
−
2
sin
(
4
x
+
2
)
Given,
y
=
5
x
(
1
−
x
)
−
2
/
3
+
cos
2
(
2
x
+
1
)
d
y
d
x
=
5.1
(
1
−
x
)
−
2
/
3
+
5
x
.
(
−
2
3
)
(
1
−
x
)
−
2
/
3
−
1
(
−
1
)
+
2
cos
(
2
x
+
1
)
.
{
−
sin
(
2
x
+
1
)
}
.2
.
=
5
3
(
1
−
x
)
5
/
9
(
3
−
x
)
−
2
sin
(
4
x
+
2
)
.
Suggest Corrections
2
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Q.
Solution to the differential equation
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Q.
Solution to the differential equation
x
+
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3
!
+
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5
5
!
+
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.
.
.
.
.
1
+
x
2
2
+
x
4
4
!
+
.
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.
.
=
d
x
−
d
y
d
x
+
d
y
is
Q.
Solution to the differential equation
x
+
x
3
3
!
+
x
5
5
!
+
.
.
.
.
.
1
+
x
2
2
!
+
x
4
4
!
+
.
.
.
.
.
=
d
x
−
d
y
d
x
+
d
y
is
Q.
If
y
=
1
+
x
−
x
2
2
!
−
x
3
3
!
+
x
4
4
!
+
x
5
5
!
−
.
.
.
.
.
.
.
.
then
d
y
d
x
=
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