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ECAT Pre General Science Mathematics Chapter 12 Trigonometric Functions and Identities Online Test MCQs With Answers
Question # 1
sin(180° -
θ)=
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cos
θ
-cos
θ
Tan
θ
Sin
θ
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Question # 2
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Question # 3
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Question # 4
Tan 2
θ=
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Question # 5
cos (
α
-
β
) = cos
α
cos
β
+ sin
α
sin
β
is true for all
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α
>
β
> 0
α
>
β
β
>
α
None of these
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Question # 6
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Question # 7
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 # 8
sin
2
α
cos
2
α
=
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-1
0
1
None of these
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Question # 9
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-sin
θ
cos
θ
sin
θ
-cos
θ
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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
Fundamental law is
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Question # 13
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Question # 14
2cos2 a/2 =______;
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1+sina
1-sina
1+cosa
1-cosa
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Question # 15
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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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Question # 20
sec (-360°) = ______
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0
1
2
3
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Question # 21
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Question # 22
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Question # 23
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1
2
-2
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Question # 24
If ΔABC is right triangle then the law of Cosines reduces to
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The Pythagoras Theorem
The law of Sines
The law of cosines
The law of tangents
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Question # 25
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Question # 26
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Question # 27
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Question # 28
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