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ECAT Pre General Science Mathematics Chapter 12 Trigonometric Functions and Identities Online Test MCQs With Answers
Question # 1
Tan 2
θ=
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Question # 2
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Question # 3
sin
α=
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2 sin
α
cos
α
2 sin
α
cos
β
2 sin
α
/2 cos
α
/2
1+ tan
2
α
/2
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Question # 4
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Question # 5
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Question # 6
cos 315° = ______
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Question # 7
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Question # 8
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Question # 9
sin (
α -
β
)=
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sin
α
cos
β
- cos
α
sin
β
sin
α
cos
β
+ cos
α
sin
β
sin
α
cos
α
- cos
β
sin
β
sin
α
cos
α
- cos
β
sin
β
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Question # 10
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Question # 11
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Question # 12
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Question # 13
cos 2
α=
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sin
2
α
+ cos
2
α
-cos
θ
tan
θ
None of these
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Question # 14
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Question # 15
cos 2
α=
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1 - 2 sin
2
α
sin
2
α
+ cos
2
β
sin
2
α
- cos
2
β
None of these
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Question # 16
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Question # 17
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Question # 18
sec (-360°) = ______
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0
1
2
3
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Question # 19
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Question # 20
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Question # 21
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Question # 22
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Question # 23
cos
4
θ
- sin
4
θ
=
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cos4
θ
cos2
θ
-sin
θ
sin2
θ
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Question # 24
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Question # 25
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Question # 26
2
π
+
θ
will have terminal side in Quad
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I
II
III
IV
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Question # 27
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Question # 28
sin (
α
+
β
) + sin (
α
-
β
)
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2 sin
α
cos
β
sin (2
α
β)
sin
α
cos
α
None of these
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