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TN 12TH MATHS - Online Test
tn 12th maths
TEST : 2
#
# TN 12th Maths
Prepare / Learn
Q1.
A binary operation on a set
S
is a function from
A.
S
→
S
B.
(
S
×
S
)→
S
C.
S
→(
S
×
S
)
D.
(
S
×
S
)→(
S
×
S
)
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
No Explaination.
# Chapter 6: Applications of Vector Algebra
# TN 12th Maths
Prepare / Learn
Q2.
If
and
are parallel vectors, then [
,
,
] is equal to
A.
2
B.
-1
C.
1
D.
0
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 7: Applications of Differential Calculus
# TN 12th Maths
Prepare / Learn
Q3.
A balloon rises straight up at 10 m/s. An observer is 40
m
away from the spot where the balloon left the ground. The rate of change of the balloon’s angle of elevation in radian per second when the balloon is 30 metres above the ground.
A.
3/25 radians/sec
B.
4/25 radians/sec
C.
1/5 radians/sec
D.
1/3 radians/sec
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
# Chapter 1: Applications of Matrices and Determinants
# TN 12th Maths
Prepare / Learn
Q4.
If
A
is a 3
×
3 non-singular matrix such that
AA
T
=
A
T
A
and
B
=
A
−
1
A
T
, then
BB
T
=
A.
A
B.
B
C.
I
3
D.
B
T
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Chapter 8: Differentials and Partial Derivatives
# TN 12th Maths
Prepare / Learn
Q5.
The percentage error of fifth root of 31 is approximately how many times the percentage error in 31?
A.
1/31
B.
1/5
C.
5
D.
31
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
# Chapter 2: Complex Numbers
# TN 12th Maths
Prepare / Learn
Q6.
The value of
∑
(
i
n
+
i
n
−
1
) is
A.
1+
i
B.
i
C.
1
D.
0
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
# Chapter 9: Applications of Integration
# TN 12th Maths
Prepare / Learn
Q7.
The value of
is
A.
1/2
B.
3/2
C.
5/2
D.
7/2
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
# Chapter 10: Ordinary Differential Equations
# TN 12th Maths
Prepare / Learn
Q8.
The differential equation representing the family of curves
y
= A cos(x + B), where A and B are parameters, is
A.
B.
C.
D.
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
# Chapter 3: Theory of Equations
# TN 12th Maths
Prepare / Learn
Q9.
If
f
and
g
are polynomials of degrees
m
and
n
respectively, and if
h
(
x
)
=
(
f
o
g
)
(
x
) , then the degree of
h
is
A.
mn
B.
m
+
n
C.
m
n
D.
n
m
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
# Chapter 4: Inverse Trigonometric Functions
# TN 12th Maths
Prepare / Learn
Q10.
If sin
−
1
x
+
sin
−
1
y (
2
π
/3) ;
then cos
−
1
x
+
cos
−
1
y
is equal to
A.
2π /3
B.
π /3
C.
π /6
D.
π
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
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