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ECAT Pre General Science Mathematics Chapter 12 Trigonometric Functions and Identities Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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Question # 4
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Question # 5
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Question # 6
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Question # 7
With usual notations b2 = a2 + c2 2ac cos is called______;
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None of these
Law of sines
Law of consines
Law of tangents
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Question # 8
sin (
α
+
β
)  sin (
α 
β
) =
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4 cos
α
sin
β
2 cos
α
sin
β
4 cos
α
cos
β
4 sin
α
sin
β
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Question # 9
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Question # 10
cos (180° 
θ
)=
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sin
θ
 cos
θ
 sin
θ
None of above
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Question # 11
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Question # 12
sec (360°) = ______
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0
1
2
3
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Question # 13
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Question # 14
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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