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Online Tests
ECAT Pre General Science Mathematics Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
What is the value of cos (cos-1 2) ?
Choose an answer
√2
1/2
undefine
0
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Question # 2
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 # 3
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 # 4
sin[cot
-1
{cos(tan
-1
x)}]=
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Question # 5
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 # 6
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Question # 7
The Principal value of sin-1 (-1/1/2)
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π/2
-π/2
π
-π
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Question # 8
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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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1
7
4
None of these
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Question # 13
The range of the principle cot function is
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Question # 14
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π
π / 2
π / 3
π / 4
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Question # 15
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 # 16
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π / 4
π / 6
π / 3
0
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Question # 17
The value of sin [ arc cos (-1/2)] is
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Question # 18
Ifπ≤x≤2π, then cos-1 (cos x)=
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cos x
-x
1/x
-x
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Question # 19
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Question # 20
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 # 21
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 # 22
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Question # 23
If cos (2 sin-1 x) = 1/9 , then what is the value of x?
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1/3
-2/3
2/3
2/3 , -2/3
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Question # 24
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Question # 25
Tan
-1
1/x = ______
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sin x
sec
-1
X
cot
-1
X
None of these
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Question # 26
If 2 tan
1
(cos x) = tan
-1
(cosec
2
x), then x is equal to
Choose an answer
π
/ 3
π
/ 2
π
/ 6
π
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Question # 27
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Question # 28
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1
-1
0
None of these
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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
Choose an answer
3
1
2
-1
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Question # 30
The domain of the principle cos function is
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Question # 31
Sec
-1
x =
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Cos
-1
1/x
cosec
-1
1/x
Cos
-1
(-x)
Tan
-1
x
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