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ECAT Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
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Question # 2
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 # 3
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π / 3
π / 4
π / 6
0
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Question # 4
Tan
-1
1/x = ______
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sin x
sec
-1
X
cot
-1
X
None of these
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Question # 5
The domain of the principal tan function is
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Question # 6
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Question # 7
Sin -1 x=
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sin(π/2-x)
Sin-1 (π/2-x)
π/2-cos-1x
π/2 + cos-1x
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Question # 8
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 # 9
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1
0
3
-3
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Question # 10
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1/3
1
3
None of these
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Question # 11
Cos-1 (-x) =
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-x
1/x
tan-1 x
π-cos-1 x
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Question # 12
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Question # 13
Cos-1(x)=
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cos x
x
tan-1(-x)
Sec-1 (1/x)
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Question # 14
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2
5
7
None of these
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Question # 15
The principal value of sin-1√(3/2) is
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-π/3
π/3
2π/3
π/2
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Question # 16
sin (sin
-1
(1/2))=
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0
2
∞
1/2
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Question # 17
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Question # 18
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Question # 19
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x = 3
x = 1/5
x = 0
None of these
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Question # 20
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Question # 21
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 # 22
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 # 23
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Question # 24
The range of the principle cot function is
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Question # 25
The solution set of the equation tan
-1
x - cot
-1
x = cos
-1
(2 - x) is
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[0, 1]
[-1, 1]
[1, 3]
None of these
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Question # 26
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Question # 27
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 # 28
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Question # 29
If cos
-1
p + cos
-1
q + cos
-1
r =
π
then p
2
+ q
2
+ r
2
+ 2pqr is equal to
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3
1
2
-1
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Question # 30
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π / 4
π / 6
π / 3
0
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Question # 31
The value of sin [ arc cos (-1/2)] is
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