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Recent questions in Limit, Continuity and Differentiability
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>>
JEEMAIN and NEET
>>
Mathematics
>>
Limit, Continuity and Differentiability
lim
x
→
1
[
x
3
+
2
x
2
+
x
+
1
x
2
+
2
x
+
3
]
1
−
cos
(
x
−
1
)
(
x
−
1
)
2
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q51
asked
Dec 24, 2013
by
sreemathi.v
1
answer
lim
n
→
∞
n
∑
r
=
1
π
n
sin
π
r
n
is
jeemain
math
class12
ch7
integrals
definite integrals
easy
q50
asked
Dec 24, 2013
by
sreemathi.v
1
answer
lim
x
→
2
2
x
+
2
3
−
x
−
6
√
2
−
x
−
2
1
−
x
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q49
asked
Dec 24, 2013
by
sreemathi.v
1
answer
The function
f
(
x
)
=
{
1
x
≤
−
1
|
x
|
−
1
<
x
<
1
0
x
≥
1
jeemain
math
class12
ch5
continuity-and-differentiability
differentiability
easy
q48
asked
Dec 24, 2013
by
sreemathi.v
1
answer
If
f
(
x
)
=
(
x
+
1
)
cot
x
is continuous at
x
=
0
then
f
(
0
)
is
jeemain
math
clas12
continuity-and-differentiability
continuity
easy
q47
asked
Dec 24, 2013
by
sreemathi.v
2
answers
Value of
lim
x
→
2
−
{
x
+
(
x
−
[
x
]
2
)
}
is
jeemain
math
class11
ch13
continuity-and-differentiability
differentiability
easy
q46
asked
Dec 24, 2013
by
sreemathi.v
1
answer
lim
n
→
∞
n
p
sin
2
(
n
!
)
n
+
1
0
<
p
<
1
is equal to
jeemain
math
ch13
limits-continuity-and-differentiability
introduction to limits
easy
q45
asked
Dec 24, 2013
by
sreemathi.v
1
answer
If
lim
x
→
0
(
1
+
a
x
)
b
x
=
e
2
(
a
,
b
∈
N
)
then
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q44
asked
Dec 23, 2013
by
sreemathi.v
1
answer
The function
f
(
x
)
=
sin
−
1
(
cos
x
)
is
jeemain
math
class12
ch5
continuity-and-differentiability
continuity
easy
q43
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
1
x
3
+
x
2
−
2
sin
(
x
−
1
)
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q42
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
0
(
a
x
+
b
x
+
c
x
3
)
1
x
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction of limits
easy
q41
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
0
(
cos
x
)
1
/
2
−
(
cos
x
)
1
/
3
sin
2
x
is
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q40
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
∞
(
x
+
1
x
+
2
)
2
x
+
1
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q39
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
n
→
∞
[
1
1
−
n
4
+
1
1
−
n
4
+
.
.
.
.
.
.
.
.
.
+
n
3
1
−
n
4
]
jeemain
math
class11
ch11
limits-and-derivatives
introduction to limits
easy
q38
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
1
(
log
3
3
x
)
log
x
3
is
jeemain
math
ch11
limits-continuity-and-differentiability
introduction to limits
easy
q37
asked
Dec 23, 2013
by
sreemathi.v
1
answer
If
f
(
x
)
=∣
x
−
25
∣
and
g
(
x
)
=
f
(
f
(
x
)
)
,find
g
′
(
x
)
for
x
>
50
jeemain
math
class11
ch13
limits-and-derivatives
differentiability
easy
q36
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Evaluate :
lim
x
→
0
(
cos
x
)
1
x
2
jeemain
math
class11
ch13
limits-and-derivatives
limits of trigonometric functiond
easy
q35
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Evaluate :
lim
x
→
π
4
√
2
−
cos
x
−
sin
x
(
4
x
−
π
)
2
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q34
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Evaluate :
lim
x
→
π
2
sin
(
cos
x
)
cos
x
sin
x
−
c
o
s
e
c
x
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q33
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Evaluate :
lim
x
→
0
e
x
−
e
x
cos
x
x
+
sin
x
jeemain
math
class11
ch13
limits-and- derivatives
limits-of-trigonometric-functions
easy
q32
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Evaluate :
lim
x
→
0
(
1
+
sin
x
)
1
x
2
jeemain
math
class11
ch13
limits and derivatives
introduction to limits
easy
q31
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Evaluate :
lim
h
→
0
(
a
+
h
)
2
sin
(
a
+
h
)
−
a
2
sin
a
h
jeemain
math
class11
ch13
limits and derivatives
derivatives
easy
q30
asked
Dec 23, 2013
by
sreemathi.v
1
answer
If function
f
(
x
)
is differentiable at
x
=
a
then
lim
x
→
a
x
2
f
(
a
)
−
a
2
f
(
x
)
x
−
a
is
jeemain
math
class12
ch5
continuity-and-differentiability
differentiability
easy
q29
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Let
f
:
R
→
[
0
,
∞
]
be such that
lim
x
→
5
f
(
x
)
exists and
lim
x
→
5
(
f
(
x
)
)
2
−
9
√
|
x
−
5
|
= 0. Then
lim
x
→
5
f
(
x
)
equals
jeemain
math
class11
ch5
limits and derivatives
introductxion to limits
easy
q28
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
2
(
√
1
−
cos
2
(
x
−
2
)
x
−
2
)
jeemain
math
class11
ch11
limits and derivatives
limits on trigonometric functions
easy
q27
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Let
f
:
R
→
R
be a positive increasing function with
lim
x
→
0
f
(
3
x
)
f
(
x
)
=
1
. Then
lim
x
→
∞
f
(
2
x
)
f
(
x
)
= ?
jeemain
math
class12
unit8
continuity-and-differentiability
easy
q26
asked
Dec 23, 2013
by
sreemathi.v
1
answer
Let
f
be differentiable for all
x
. If
f
(
1
)
=
−
2
and
f
′
(
x
)
≥
2
for
x
∈
[
1
,
6
]
then
jeemain
math
class12
unit8
continuity-and-differentiability
easy
q25
asked
Dec 23, 2013
by
sreemathi.v
1
answer
The value of
lim
x
→
0
x
2
∫
0
sec
2
t
d
t
x
sin
x
is
jeemain
math
class12
unit8
continuity-and-differentiability
easy
q24
asked
Dec 23, 2013
by
sreemathi.v
1
answer
If
lim
x
→
0
log
(
3
+
x
)
−
log
(
3
−
x
)
x
=
K
the value of
K
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q23
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
n
→
∞
1
+
2
4
+
3
4
+
.
.
.
.
.
.
n
4
n
5
-
lim
n
→
∞
1
+
2
3
+
3
3
+
.
.
.
.
.
.
n
3
n
5
=
jeemain
math
classs12
ch13
integrals
definite integrals as limits of sum
easy
q22
asked
Dec 23, 2013
by
sreemathi.v
1
answer
If
f
(
x
+
y
)
=
f
(
x
)
.
f
(
y
)
∀
x
,
y
and
f
(
5
)
=
2
,
f
′
(
0
)
=
3
then
f
′
(
5
)
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q21
asked
Dec 23, 2013
by
sreemathi.v
1
answer
If
f
(
1
)
=
1
,
f
′
(
1
)
=
2
then
lim
√
f
(
x
)
−
1
√
x
−
1
is
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q20
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
x
→
0
log
x
n
−
[
x
]
[
x
]
n
∈
N
(
x
denotes greatest integer less than or equal to
x
)
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q19
asked
Dec 23, 2013
by
sreemathi.v
1
answer
lim
n
→
∞
1
p
+
2
p
+
3
p
+
.
.
.
.
.
+
n
p
n
p
+
1
is
jeemain
math
class12
ch7
integrals
definite integrals as limit of sum
easy
q18
asked
Dec 20, 2013
by
sreemathi.v
1
answer
Let
f
(
x
)
=
4
and
f
′
(
x
)
=
4
. Then
lim
x
→
2
x
f
(
2
)
−
2
f
(
x
)
x
−
2
is given by
jeemain
math
class11
ch13
limits-and-derivatives
introduction to limits
easy
q17
asked
Dec 20, 2013
by
sreemathi.v
1
answer
lim
x
→
0
√
1
−
cos
2
x
√
2
x
is
jeemain
math
class12
ch5
continuity-and-differentiability
continuity
easy
q16
asked
Dec 20, 2013
by
sreemathi.v
1
answer
If
(
x
)
is differentiable and strictly increasing function then the value of
lim
x
→
0
f
(
x
2
)
−
f
(
x
)
f
(
x
)
−
f
(
0
)
is
jeemain
math
class12
ch5
continuity-and-differentiability
differentiability
easy
q15
asked
Dec 20, 2013
by
sreemathi.v
1
answer
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