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Recent questions in Class11
Questions
>>
JEEMAIN and NEET
>>
Mathematics
>>
Class11
Class11
Sets
Relations and Functions
Trigonometric Functions
Complex Numbers and Quadratic Equations
Permutations and Combinations
Bionomial Theorem and Simple Applications
Sequence and Series
Coordinate Geometry: Straight Lines
Coordinate Geometry: Conic Sections
Coordinate Geometry
3-D Geometry
Limits and Derivatives
Mathematical Reasoning
Statistics
Probability
If
f
=
{
(
1
,
5
)
,
(
2
,
6
)
,
(
3
,
4
)
}
and
g
=
{
(
4
,
7
)
,
(
5
,
8
)
,
(
6
,
9
)
}
, then
g
o
f
= ?
jeemain
math
class11
ch2
relations-and-functions
easy
asked
May 15, 2013
by
rvidyagovindarajan_1
1
answer
If
[
2
x
−
3
]
=
5
, what are the values of
x
where
[
.
]
is greatest integer function
jeemain
math
class11
ch2
relations-and-functions
function
medium
asked
May 8, 2013
by
rvidyagovindarajan_1
1
answer
If
f
(
x
)
=
l
o
g
(
1
+
x
1
−
x
)
, then
f
(
x
)
+
f
(
y
)
= ?
jeemain
math
class11
ch2
relations-and-functions
function
difficult
asked
May 8, 2013
by
rvidyagovindarajan_1
1
answer
If
f
:
R
→
R
is a function defined as
f
(
2
x
+
3
)
+
f
(
2
x
+
7
)
=
2
∀
x
∈
R
then the period of
f
(
x
)
is
jeemain
math
class11
ch2
relations-and-functions
functions
difficult
asked
May 7, 2013
by
rvidyagovindarajan_1
1
answer
The range of the real valued function
f
(
x
)
=
x
2
+
x
+
2
x
2
+
x
+
1
is
jeemain
math
class11
ch2
relations-and-functions
functions
difficult
asked
May 7, 2013
by
rvidyagovindarajan_1
1
answer
If
A
a
n
d
B
are two sets such that
(
A
−
B
)
∪
B
=
A
, then what can you say about
A
a
n
d
B
?
jeemain
math
class11
ch1
sets
venn
diagram
and
operations
on
easy
asked
May 4, 2013
by
rvidyagovindarajan_1
1
answer
What is the domain of
f
(
x
)
=
[
x
]
+
1
[
x
]
−
1
where
[
x
]
is greatest integer function
jeemain
math
class11
ch2
relations-and-functions
functions
easy
asked
May 1, 2013
by
rvidyagovindarajan_1
1
answer
The no. of subsets of a finite set A is 56 more than the no. of subsets of another finite set B. What is the no. of elements of A?
jeemain
math
class11
ch1
sets
subsets-universal-sets-and-power-sets
medium
asked
May 1, 2013
by
rvidyagovindarajan_1
1
answer
The domain of
s
i
n
−
1
[
l
o
g
3
(
x
3
)
]
is
jeemain
math
class11
ch2
relations-and-functions
functions
difficult
asked
Apr 29, 2013
by
rvidyagovindarajan_1
1
answer
If
A
=
{
x
/
x
∈
N
,
and
x
is a multiple of
3
≤
100
}
and
B
=
{
x
/
x
∈
N
and
x
is multiple of
5
≤
100
}
, then no. of elements in
(
A
×
B
)
∩
(
B
×
A
)
i
s
jeemain
math
class11
ch1
sets
venn-diagram-and-operations
easy
asked
Apr 29, 2013
by
rvidyagovindarajan_1
1
answer
If
S
is a set having 10 elements in it and
A
is a relation in
S
defined as
A
=
{
(
x
,
y
)
, where
x
,
y
∈
S
and
x
≠
y
.
}
, then no. of elements in
A
is
jeemain
math
class11
ch2
relations-and-functions
relations
easy
asked
Apr 29, 2013
by
rvidyagovindarajan_1
1
answer
If the set
S
=
1
,
2
,
3...........12
is to be partitioned into 3 sets A,B,C of equal size so that
A
∪
B
∪
C
=
S
a
n
d
A
∩
B
=
B
∩
C
=
C
∩
A
=
ϕ
, then the number of ways the partition can be done is equal to:
(
A
)
12
!
3
!
(
3
!
)
4
(
B
)
12
!
(
4
!
)
3
(
C
)
12
!
(
3
!
)
3
(
D
)
12
!
3
!
(
4
!
)
3
asked
Apr 26, 2013
by
balaji.thirumalai
1
answer
If the set
S
=
1
,
2
,
3...........12
is to be partitioned into
3
sets
A
,
B
,
C
of equal size so that
A
∪
B
∪
C
=
S
and
A
∩
B
=
B
∩
C
=
C
∩
A
=
ϕ
, then the no. of ways the partition can be done is
jeemain
math
class11
ch1
sets
venn
diagram
operation
on
difficult
asked
Apr 26, 2013
by
rvidyagovindarajan_1
1
answer
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