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ECAT Pre General Science Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
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π
π / 2
π / 3
π / 4
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Question # 2
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Question # 3
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π
/ 4
π
/ 6
π
/ 3
2π
/ 3
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Question # 4
The number of triplets (x, y, z) satisfying sin
-1
x +cos
-1
y + sin
-1
z = 2
π
is
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0
2
1
Infinite
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Question # 5
The principal value of sin
-1
(-1/2)
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π/3
π/4
π/6
-π/6
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Question # 6
The value of sin
-1
5/13 is equal to
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Cos 5/13
Tan
-1
5/12
cos
-1
5/12
2 cos
-1
4/5
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Question # 7
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Question # 8
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Question # 9
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Question # 10
The value of cos(cos-1 1/2) is
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1/2
√3/2
-1/2
1/√2
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Question # 11
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Question # 12
The exact value of cos
-1
(-1) + cos
-1
(1) =
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π
-π
π/2
π/3
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Question # 13
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Question # 14
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Question # 15
Cos
-1
12/13 =
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tan
-1
3/5
cot
-1
13/12
Sec
-1
13/12
sin
-1
5/13
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Question # 16
If tan
-1
3 + tan
-1
x = tan
-1
8, then x=
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5
1/5
5/14
14/5
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Question # 17
The range of the principle cot function is
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Question # 18
x = sin
-1
3, then the value of sin x is
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√(3/2)
3
Not possible
-1
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Question # 19
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Question # 20
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π / 3
π / 4
π / 2
π
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Question # 21
Ifπ≤x≤2π, then cos-1 (cos x)=
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cos x
-x
1/x
-x
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Question # 22
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20
10
0
None of these
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Question # 23
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Question # 24
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Question # 25
What is the value of cos-1(1/2)?
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π/3
π/4
3π/2
π/6
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Question # 26
The principal value of sin
-1
[-√(√3) /2] is
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5π/3
-2π/3
-
π/3
π/3
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Question # 27
What is the value of cos (cos-1 2) ?
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√2
1/2
undefine
0
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Question # 28
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16 / 7
6 / 17
7 / 16
None of these
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Question # 29
The exact degree value of the function sin-1( -√3/2) is
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70
ο
50
ο
90
ο
60
ο
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Question # 30
The domain of the principle cos function is
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Question # 31
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1
0
3
-3
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