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Mathematics ECAT Pre Engineering Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
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Question # 2
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 # 3
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 # 4
Cos-1 (-x) =
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-x
1/x
tan-1 x
π-cos-1 x
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Question # 5
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Question # 6
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 # 7
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1
7
4
None of these
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Question # 8
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 # 9
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Question # 10
Tan
-1
1/x = ______
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sin x
sec
-1
X
cot
-1
X
None of these
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Question # 11
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Question # 12
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1
0
3
-3
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