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Limits and Derivatives
- Online Test
Limits and Derivatives
TEST : 5
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q1.
A.
Not continuous at x=0
B.
not continuous at -1 and 1
C.
not derivable at – 1 and 1
D.
derivable at all x ∈ R
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q2.
If x = f(t) and y = g (t), then
d
2
y
d
x
2
is qual to
A.
f
′
(
t
)
.
g
′′
(
t
)
g
′
(
t
)
.
f
′′
(
t
)
B.
g
′′
(
t
)
f
′′
(
t
)
C.
g
′′
(
t
)
f
′
(
t
)
−
g
′
(
t
)
f
′′
(
t
)
(
f
′
(
t
)
)
2
D.
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q3.
f
(
x
)
=
|
[
x
]
x
|
in
−
1
in
−
1
≤
x
≤
2 is
A.
continuous at x = 0
B.
discontinuous at x = 0
C.
continuous at x = 2
D.
differentiable at x = 0
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
function is continuous at x=0 but discontinuous at x=1
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q4.
d
d
x
(
tan
−
1
(
x
√
−
a
√
1
+
x
a
√
)
)
,
x
,
a
>
0
,
i
s s
A.
tan
1
x
−
−
√
−
tan
−
1
a
−
−
√
B.
1
1
+
x
C.
1
1
+
x
−
1
1
+
a
D.
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q5.
L
t
h
→
0
8
+
h
√
3
−
2
h
is equal to
A.
1/24
B.
1/3
C.
1/12
D.
2
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q6.
If f (x) =
1
−
x
2
−
−
−
−
−
√
,
x
∈
(
0
,
1
)
,
t
h
e
n
f
′
(
x
)
is equal to
A.
1
1
−
x
2
√
B.
-x
1
−
x
2
√
C.
x
2
−
1
−
−
−
−
−
√
D.
√1-
x
2
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q7.
If
y
=
sin
−
1
x and z =
cos
−
1
1
−
x
2
−
−
−
−
−
√
,
then
d
y
d
z
=
A.
tan
−
1
x
1
−
x
2
√
B.
0
C.
1
D.
-1
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q8.
is equal to
A.
3
1
+
9
x
2
B.
1
1
+
x
2
C.
sec
2
3
x
D.
3
1
+
x
2
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q9.
d
d
x
(
cos
−
1
(
x
−
1
−
x
x
−
1
+
x
)
)
is equal to
A.
4
1
+
x
2
,
x
>
0
B.
−
2
1
+
x
2
√
C.
1
−
x
2
D.
2
1
+
x
2
,
x
>
0
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
# Limits and Derivatives
# CBSE 11th Mathematics
Prepare / Learn
Q10.
d
d
x
(
sin
−
1
(
2
x
−
1
+
x
)
)
is equal to
A.
1
−
x
2
−
−
−
−
−
√
B.
2
1
+
x
2
;
0
<
|
x
|
<
1
C.
2
1
+
x
2
√
,
|
x
|
<
1
D.
1
x
+
x
2
√
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
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