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JEE Questions for Maths Differentiation Quiz 2 - MCQExams.com
JEE
Maths
Differentiation
Quiz 2
The derivative of a
sec
x
with respect to a
tan
x
(a >is
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0%
sec x asec x – tan x
0%
sin x a tan x – sec x
0%
sin x asec x – tan x
0%
a sec x – tan x
A value of
x
in the interval (1,such that
f '
(
x
) = 0 where
f
(
x
) =
x
3
– 3
x
2
+ 2
x
+ 10 is
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0%
0%
2)
0%
0%
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0%
–1
0%
1
0%
2
0%
4
The derivative of log |
x
| is
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0%
0%
2)
0%
0%
None of these
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0%
0%
2)
0%
0%
None of the above
If y = 2
log
x
, then dy/d
x
is equal to
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0%
0%
2)
0%
0%
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0%
a x
0%
a2 x2
0%
x/a
0%
x/2a
0%
2a
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0%
0%
2)
0%
0%
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0%
0%
2)
0%
0%
The differential coefficient of
f
(log
x
), where
f
(
x
) = log
x
, is
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0%
0%
(x log x)–1
0%
0%
None of these
Derivative of log
10
x
with respect to
x
2
is
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0%
2x2 loge 10
0%
2)
0%
0%
x2 loge 10
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0%
1
0%
–1
0%
0
0%
2
If y is a function of
x
and log(
x
+ y) = 2
x
y, then the value of y'(is
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0%
1
0%
–1
0%
2
0%
0
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0%
0%
2)
0%
0%
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0%
0%
2)
0%
0%
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0%
0%
2)
0%
0%
None of these
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0%
0%
2)
0%
0%
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0%
22
0%
11
0%
0
0%
20
0%
None of these
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0%
16/3
0%
32/3
0%
16√2/3
0%
32√2/3
0%
32(2)1/2/3
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0%
n!
0%
(n – 1)!
0%
(–(n – 1)!
0%
(–1)n n!
0%
(n + 1)!
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0%
0%
2)
0%
0%
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0%
0%
2)
0%
0%
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0%
x
0%
2)
0%
0
0%
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0%
0%
2)
0%
0%
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0%
sin x
0%
– cos x
0%
cos x
0%
– sinx
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0%
0%
2)
0%
0%
If y = log
n
x
, where log
n
means log log log...(repeated n times), then
x
log
x
log
2
x
log
3
x
...log
n–1
x
log
n
x
dy/d
x
is equal to
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0%
log x
0%
x
0%
1/logx
0%
logn x
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0%
1
0%
0
0%
0%
0%
If
f
(
x
) be a polynomial function of the second degree. If
f
(=
f
(–and a
1
, a
2
, a
3
are in AP, then
f '
(a
1
),
f '
(a
2
),
f '
(a
3
) are in
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0%
AP
0%
GP
0%
HP
0%
None of these
If
f
(
x
) = cos
x
cos 2
x
cos 4
x
cos 8
x
cos 16
x
, then
f '
(π/is equal to
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0%
√2
0%
1/√2
0%
0
0%
√3/2
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0%
0
0%
1/2
0%
1
0%
2
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0%
0%
2)
0%
0%
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0%
0%
2)
0%
0%
If
x
m
y
n
= (
x
+ y)
m+n
, then (dy/d
x
)
x
= 1, y =2
is equal to
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0%
1/2
0%
2
0%
2m/n
0%
m/2n
If
x
= a (θ – sin θ) and y = a(1 – cos θ), then dy/d
x
is equal to
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0%
cot θ/2
0%
tan θ/2
0%
1/2 cosec2 θ/2
0%
– (1/cosec2 θ/2
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0%
sec2 x
0%
2)
0%
0%
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0%
0%
2)
0%
0%
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0%
0%
2)
0%
0%
0%
Suppose that
f
(
x
) is a differentiable function such that
f '
(
x
) is continuous
f '
(= 1 and
f ''
(does not exist. If g(
x
) =
x
f '
(
x
). Then,
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g'(does not exist
0%
g'(= 0
0%
g'(= 1
0%
g'(= 2
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0%
0%
2)
0%
0%
If
f
be twice differentiable function satisfying
f
(= 1,
f
(= 4,
f
(= 9, then
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f '' (x) = 2, ∀ x ϵ R
0%
f ' (x) = 5 = f ''(x), for someone x ϵ (1,3)
0%
there exists atleast one x ϵ (1,such that f '' (x) = 2
0%
None of the above
If y = cos(3 cos
–1
x
), then d
3
y/d
x
3
is equal to
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0%
24
0%
27
0%
3 – 12 x2
0%
–24
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0%
1/2
0%
2/3
0%
1/3
0%
2/5
0%
1/5
If
x
= a(1 + cos θ), y = a(θ + sin θ) , then d
2
y/ d
x
2
at θ = π/2 is equal to
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0%
– (1/a)
0%
1/a
0%
–1
0%
–2
0%
– (2/a)
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0%
2/3
0%
3/2
0%
1/2
0%
1
0%
0
The second order derivative of a sin
3
t with respect to a cos
3
t and t = π/4 is
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0%
2
0%
1/12a
0%
4√2/3a
0%
3a/4√2
If 8
f
(
x
) + 6
f
(1/
x
) =
x
+ 5 and y =
x
2
f
(
x
), then dy/d
x
at
x
= – 1 is equal to
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0%
0
0%
1/14
0%
– (1/14)
0%
1
If
f
be a twice differentiable function such that
f '
(
x
) = –
f
(
x
) and
f '
(
x
) = g(
x
) . If
h '
(
x
) [
f
(
x
)
2
+ g(
x
)
2
],
h
(= 8 and
h
(= 2, then
h
(is equal to
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0%
1
0%
2
0%
3
0%
None of these
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0%
0%
2)
0%
0%
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0%
0
0%
2 ab
0%
ab (a + b)
0%
ab
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