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ECAT Pre General Science Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
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 # 2
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 # 3
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π
/ 4
π
/ 6
π
/ 3
2π
/ 3
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Question # 4
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Question # 5
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Question # 6
The range of the principal sine function is
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Question # 7
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Question # 8
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1
0
3
-3
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Question # 9
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Question # 10
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 # 11
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Question # 12
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1
-1
0
None of these
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Question # 13
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 # 14
What is the value of cos (cos-1 2) ?
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√2
1/2
undefine
0
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Question # 15
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Question # 16
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Question # 17
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Question # 18
The domain of the principle cos function is
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Question # 19
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 # 20
cos
-1
(cos x) =
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x
cos x
x = 1/x
cos
-2
x
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Question # 21
The domain of the principle sine function is
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Question # 22
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Question # 23
sin[cot
-1
{cos(tan
-1
x)}]=
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Question # 24
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 # 25
Cos-1 (-x) =
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-x
1/x
tan-1 x
π-cos-1 x
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Question # 26
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1/3
1
3
None of these
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Question # 27
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 # 28
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Cos 2x = sin 4y
Cos 4y = cos 2x
Cos 3y = sin 4x
None of these
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Question # 29
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Question # 30
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