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ECAT Pre General Science Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
The domain of the principle cos function is
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Question # 2
Sin
-1
(-x)=
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Cos
-1
1/x
- Sin
-1
X
Cot
-1
X
None of these
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Question # 3
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 # 4
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 # 5
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 # 6
What is the value of cos (cos-1 2) ?
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√2
1/2
undefine
0
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Question # 7
tan(cot
-1
x) is equal to
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cot(tan
-1
x)
tan x
secon x
None of these
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Question # 8
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π
π / 2
π / 3
π / 4
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Question # 9
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Question # 10
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Question # 11
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Question # 12
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Question # 13
If 2 tan
1
(cos x) = tan
-1
(cosec
2
x), then x is equal to
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π
/ 3
π
/ 2
π
/ 6
π
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Question # 14
sin
-1
[-1/2] = ______
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Question # 15
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 # 16
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Question # 17
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Question # 18
The domain of the principal tan function is
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Question # 19
sn (2sin-10.8)
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0.56
0.69
-0.16
0.96
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Question # 20
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 # 21
The value of sin [ arc cos (-1/2)] is
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Question # 22
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Question # 23
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Question # 24
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Question # 25
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Question # 26
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 # 27
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 # 28
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Question # 29
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Question # 30
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1
-1
0
None of these
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Question # 31
Tan
-1
1/x = ______
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sin x
sec
-1
X
cot
-1
X
None of these
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