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TN State Board
TN 12th Standard
Maths
TEST : 21
TN State Board
TN 12th Standard
Maths
Chapter 4: Inverse Trigonometric Functions
Prepare / Learn
Q1.
If
, then
x
is equal to
A.
1/2
B.
1/√5
C.
2/√5
D.
√3/2
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 11: Probability Distributions
Prepare / Learn
Q2.
Let
X
have a Bernoulli distribution with mean 0.4, then the variance of (2
X
–3) is
A.
0.24
B.
0.48
C.
0.6
D.
0.96
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 5: Two Dimensional Analytical Geometry II
Prepare / Learn
Q3.
Area of the greatest rectangle inscribed in the ellipse
is
A.
2ab
B.
ab
C.
√ab
D.
a/b
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 12: Discrete Mathematics
Prepare / Learn
Q4.
The proposition p
∧
(¬p
∨
q) is
A.
a tautology
B.
a contradiction
C.
logically equivalent to p
∨
q
D.
logically equivalent to p
∨
q
View Solution
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Answer :
Option C
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 6: Applications of Vector Algebra
Prepare / Learn
Q5.
The coordinates of the point where the line
= (6 ˆ
i
- ˆ
j
- 3 ˆ
k
) + t(-ˆ
i
+ 4 ˆ
k
) meets the plane
.( ˆ
i
+ ˆ
j
- ˆ
k
) = 3 are
A.
(2,1, 0)
B.
(7, -1, -7)
C.
(1, 2, -6)
D.
(5, -1,1)
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Maths
Chapter 7: Applications of Differential Calculus
Prepare / Learn
Q6.
The curve
y
= a
x
4
+ b
x
2
with
ab
> 0
A.
has no horizontal tangent
B.
is concave up
C.
is concave down
D.
has no points of inflection
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 1: Applications of Matrices and Determinants
Prepare / Learn
Q7.
If
x
a
y
b
=
e
m
,
x
c
y
d
=
e
n
,
then the values of
x
and
y
are respectively,
A.
e
(Δ2 / Δ1 )
, e
(Δ3 / Δ1 )
B.
log(Δ
1
/ Δ
3
), log(Δ
2
/Δ
3
)
C.
log(Δ
2
/ Δ
1
), log(Δ
3
/Δ
1
)
D.
e
(Δ1 / Δ3 )
, e
(Δ2/Δ3 )
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 2: Complex Numbers
Prepare / Learn
Q8.
If
ω
≠
1 is a cubic root of unity and (1
+
ω
)
7
=
A
+
B
ω
, then (
A
,
B
) equals
A.
(1, 0)
B.
( −1, 1)
C.
( 0, 1)
D.
(1, 1)
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 9: Applications of Integration
Prepare / Learn
Q9.
The value of
is
A.
B.
C.
D.
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
TN State Board
TN 12th Standard
Maths
Chapter 10: Ordinary Differential Equations
Prepare / Learn
Q10.
The number of arbitrary constants in the general solutions of order
n
and
n
+1are respectively
A.
n
−1
, n
B.
n, n
+1
C.
n
+ 1
, n
+ 2
D.
n
+1,
n
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
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TN State Board
TN 12th Standard
Maths
TEST : 21
Maths
| Online Objective Test |
Start Test
Chapter 1: Applications of Matrices and Determinants
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Start Test
Chapter 2: Complex Numbers
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Chapter 3: Theory of Equations
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Chapter 4: Inverse Trigonometric Functions
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Chapter 5: Two Dimensional Analytical Geometry II
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Chapter 6: Applications of Vector Algebra
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Chapter 7: Applications of Differential Calculus
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Chapter 8: Differentials and Partial Derivatives
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Chapter 9: Applications of Integration
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Chapter 10: Ordinary Differential Equations
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Chapter 11: Probability Distributions
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Chapter 12: Discrete Mathematics
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