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ECAT Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
sin
-1
x =
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tan
-1
x
Cosec
-1
x
Cosec x
cosec
-1
(1/x)
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Question # 2
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Question # 3
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Question # 4
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Question # 5
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2
5
7
None of these
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Question # 6
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Question # 7
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 # 8
Cos-1(x)=
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cos x
x
tan-1(-x)
Sec-1 (1/x)
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Question # 9
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1
7
4
None of these
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Question # 10
The exact value of cos-1 (0) is
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π/2
-π/2
3π
π-π/6
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Question # 11
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 # 12
The domain of the principal tan function is
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Question # 13
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1
-1
0
None of these
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Question # 14
tan
-1
x > cot
-1
x holds for
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x > 1
x < 1
x = 1
All values of x
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Question # 15
Ifπ≤x≤2π, then cos-1 (cos x)=
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cos x
-x
1/x
-x
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Question # 16
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1
-1
0
None of these
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Question # 17
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Question # 18
In the interval 0≤ x ≤ π, the sine is
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Not a function
Not defined
Infinity
Not one-to-one function
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Question # 19
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Question # 20
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Question # 21
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Question # 22
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0
-1
1/2
1
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Question # 23
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 # 24
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Question # 25
The domain of the function y = sin x , is
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-π/2≤ x≤ π/2
π/ ≤ x≤ π
-2π ≤ x≤ 2π
-1 ≤ x≤ 1
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Question # 26
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π / 3
π / 4
π / 2
π
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Question # 27
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Question # 28
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Question # 29
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π / 4
π / 6
π / 3
0
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Question # 30
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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