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Mathematics ECAT Pre Engineering Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
The value of sin [ arc cos (-1/2)] is
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Question # 2
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 # 3
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Question # 4
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 # 5
What is the value of cos (cos-1 2) ?
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√2
1/2
undefine
0
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Question # 6
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 # 7
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Question # 8
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 # 9
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1
-1
0
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
x = sin
-1
3, then the value of sin x is
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√(3/2)
3
Not possible
-1
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Question # 12
The range of the principle cos function is
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Question # 13
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Question # 14
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Question # 15
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 # 16
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Question # 17
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Question # 18
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Question # 19
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1
-1
0
None of these
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Question # 20
The Principal value of sin-1 (-1/1/2)
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π/2
-π/2
π
-π
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Question # 21
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16 / 7
6 / 17
7 / 16
None of these
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Question # 22
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 # 23
Cos-1(x)=
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cos x
x
tan-1(-x)
Sec-1 (1/x)
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Question # 24
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20
10
0
None of these
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Question # 25
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π / 3
π / 4
π / 6
0
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Question # 26
The range of the principal sine function is
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Question # 27
sn (2sin-10.8)
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0.56
0.69
-0.16
0.96
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Question # 28
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Question # 29
sin -1(sin2π/3) =
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π/2
2π/3
-3π/2
π/3
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Question # 30
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