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अर्कज
Subject: Maths
, asked on 18/5/18
W
h
a
t
i
s
t
h
e
d
o
m
a
i
n
o
f
t
h
e
f
u
n
c
t
i
o
n
g
(
x
)
=
cos
x
-
2
x
-
1
x
-
2
?
(
A
)
(
-
∞
,
1
)
∪
[
3
,
∞
)
(
B
)
(
-
∞
,
1
)
∪
(
3
,
∞
)
(
C
)
[
0
,
1
)
(
D
)
[
1
,
3
)
Answer
2
अर्कज
Subject: Maths
, asked on 18/5/18
Solve this:
Question No. 4
The domain of the function :
f
x
=
1
-
log
e
1
-
2
x
is
A
-
∞
,
1
-
e
2
∪
1
2
,
∞
B
[
1
-
e
2
,
1
2
)
C
1
-
e
2
,
1
2
D
(
1
-
e
2
,
1
2
]
Answer
1
अर्कज
Subject: Maths
, asked on 18/5/18
Solve this:
Q. The domain of the function
f
x
=
2
-
x
3
-
x
is
A
-
3
,
3
B
-
2
,
2
C
(
-
∞
,
-
3
]
∪
-
2
,
2
∪
[
3
,
∞
)
D
-
∞
,
-
3
∪
-
2
,
2
∪
3
,
∞
Answer
1
अर्कज
Subject: Maths
, asked on 18/5/18
Solve this:
Q. Let f be a real valued function defined by
f
x
=
x
-
1
x
-
2
In
x
-
1
x
-
2
-
x
+
3
x
-
4
Where[.] denotes the greatest integer function, then domain of the function is.
A
-
2
,
3
-
5
2
∪
3
+
5
2
,
4
B
(
-
3
,
3
-
5
2
]
∪
[
3
+
5
2
,
3
)
C
(
-
3
,
3
-
5
2
]
∪
[
3
+
5
2
,
4
)
D
(
-
3
,
3
+
5
2
]
∪
[
3
+
5
2
,
4
)
Answer
1
अर्कज
Subject: Maths
, asked on 18/5/18
Solve this:
Q. The number of solution of the equation [x]+[-x]+x
2
=1, where [.] denotes the greatest integer function is.
(A) Infinitely many
(B) 4
(C) 2
(D) 0
Answer
1
अर्कज
Subject: Maths
, asked on 17/5/18
Solve this:
Question No. 4
If A = {x: x is a real number} and B = {0}, then the set (B
×
A) is
A. the set containing the origin in two-dimensional space
B. the set of all points lying on the x-axis in two-dimensional space
C. the set of all points lying on the y-axis in two-dimensional space
D. the set of all points on a coordinate plane in two-dimensional space
Answer
2
अर्कज
Subject: Maths
, asked on 17/5/18
Solve this:
Q. If sec A + tan A = 13/3, then sec A is equal to
A. 89/39
B. 39/41
C. 41/71
D. 91/73
Answer
1
अर्कज
Subject: Maths
, asked on 17/5/18
Solve this:
The tips of the pendulums of two wall clocks having their respective lengths as 35 cm and 49 cm make arcs of lengths 11 cm and 22 cm, respectively.
What are the respective angles through which the pendulums of the two wall clocks will swing?
A
π
4
radian
and
π
3
radian
B
π
10
radian
and
π
7
radian
C
4
π
radian
and
3
π
radian
D
π
3
radian
and
π
4
radian
Answer
2
अर्कज
Subject: Maths
, asked on 17/5/18
Solve this :
Q
.
Find
the
value
of
expression
2
tan
x
+
1
cos
2
x
,
∀
7
π
2
<
x
<
15
π
4
(
a
)
-
1
+
tan
x
(
b
)
(
1
-
tan
x
)
(
c
)
(
1
+
tan
x
)
(
d
)
(
tan
x
-
1
)
Answer
1
अर्कज
Subject: Maths
, asked on 15/5/18
Solve this:
Question No. 10
The number of solutions of the equation
x
+
-
x
+
x
2
=
1
, where [.] denotes the greatest integer function is
A. Infinitely many
B. 4
C. 2
D. 0
Answer
2
अर्कज
Subject: Maths
, asked on 15/5/18
Solve this:
f
x
=
x
-
1
x
-
2
in
x
-
1
x
-
2
-
x
+
3
x
-
4
where
[
.
]
denotes
the
greatest
integer
function
,
then
domain
of
the
function
is
.
A
-
2
,
3
-
5
2
∪
3
+
5
2
,
4
B
-
3
,
3
-
5
2
∪
3
+
5
2
,
3
C
-
3
,
3
-
5
2
∪
3
+
5
2
,
4
D
-
3
,
3
+
5
2
∪
3
+
5
2
,
4
Answer
2
अर्कज
Subject: Maths
, asked on 15/5/18
Q). The domain of the function
f
x
=
2
-
x
3
-
x
is
A. (- 3, 3)
B. (- 2, 2)
C.
-
∞
,
-
3
∪
2
,
2
∪
[
3
,
∞
)
D.
-
∞
,
-
3
∪
2
,
2
∪
(
3
,
∞
)
Answer
2
अर्कज
Subject: Maths
, asked on 15/5/18
Solve this:
Question
No
.
7
The
range
of
the
function
f
x
=
5
x
-
x
2
-
6
is
.
A
-
1
2
,
1
2
B
0
,
1
2
C
0
,
1
2
D
1
2
,
-
1
2
Answer
1
अर्कज
Subject: Maths
, asked on 15/5/18
Solve this:
Question NO.6 )
If {( – 1, 16), (0, 1), (1, 4) , (2, 25)}
⊂
f, where f :
R
→
R
, is a quadratic function, then the function f(x) is
(A) 9x
2
+ 6x +1
(B) 9x
2
– 6x + 1
(C) 3x
2
+ 2x + 1
(D) 3x
2
– 2x + 1
Answer
1
अर्कज
Subject: Maths
, asked on 15/5/18
Solve this:
Question No. 4
The domain of the function
f
x
=
1
-
log
e
1
-
2
x
is
A
-
∞
,
1
-
e
2
∪
1
2
,
∞
B
[
1
-
e
2
,
1
2
)
C
1
-
e
2
,
1
2
D
(
1
-
e
2
,
1
2
]
Answer
1
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What are you looking for?
Question No. 4
The domain of the function :
Q. The domain of the function is
Q. Let f be a real valued function defined by
Where[.] denotes the greatest integer function, then domain of the function is.
Q. The number of solution of the equation [x]+[-x]+x2=1, where [.] denotes the greatest integer function is.
(A) Infinitely many
(B) 4
(C) 2
(D) 0
Question No. 4
If A = {x: x is a real number} and B = {0}, then the set (BA) is
A. the set containing the origin in two-dimensional space
B. the set of all points lying on the x-axis in two-dimensional space
C. the set of all points lying on the y-axis in two-dimensional space
D. the set of all points on a coordinate plane in two-dimensional space
Q. If sec A + tan A = 13/3, then sec A is equal to
A. 89/39
B. 39/41
C. 41/71
D. 91/73
The tips of the pendulums of two wall clocks having their respective lengths as 35 cm and 49 cm make arcs of lengths 11 cm and 22 cm, respectively.
What are the respective angles through which the pendulums of the two wall clocks will swing?
Question No. 10
The number of solutions of the equation , where [.] denotes the greatest integer function is
A. Infinitely many
B. 4
C. 2
D. 0
A. (- 3, 3)
B. (- 2, 2)
C.
D.
Question NO.6 ) If {( – 1, 16), (0, 1), (1, 4) , (2, 25)} f, where f : R R, is a quadratic function, then the function f(x) is
(A) 9x2 + 6x +1
(B) 9x2 – 6x + 1
(C) 3x2 + 2x + 1
(D) 3x2 – 2x + 1
Question No. 4
The domain of the function