More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Mathematics Chapter 12 Trigonometric Functions and Identities Online Test MCQs With Answers
Question # 1
sin 3a = ______;
Choose an answer
3sin a - 4sin3a
4sin a -3 sin3 a
3 cos3 a -cosa
4cos3 a - 3cos a
Previous
Skip
Next
Question # 2
Choose an answer
Previous
Skip
Next
Question # 3
Distance between A(3, 8), B(5, 6) is
Choose an answer
Previous
Skip
Next
Question # 4
Express as a sum or difference: 2 sin 5
θ
cos
θ
Choose an answer
cos 4
θ
- cos 2
θ
sin 4
θ
+ sin 2
θ
cos 4
θ
+ cos 2
θ
sin 4
θ
- sin 2
θ
Previous
Skip
Next
Question # 5
sin
2
α
cos
2
α
=
Choose an answer
-1
0
1
None of these
Previous
Skip
Next
Question # 6
Choose an answer
Previous
Skip
Next
Question # 7
Choose an answer
Previous
Skip
Next
Question # 8
Choose an answer
Previous
Skip
Next
Question # 9
Choose an answer
Previous
Skip
Next
Question # 10
Choose an answer
Previous
Skip
Next
Question # 11
Tan 2
θ=
Choose an answer
Previous
Skip
Next
Question # 12
Choose an answer
quadrant I
quadrant II
quadrant III
quadrant IV
Previous
Skip
Next
Question # 13
Choose an answer
Previous
Skip
Next
Question # 14
Choose an answer
Previous
Skip
Next
Question # 15
Choose an answer
Previous
Skip
Next
Question # 16
tan (-135°) = ______
θ
Choose an answer
0
1
2
3
Previous
Skip
Next
Question # 17
Choose an answer
Previous
Skip
Next
Question # 18
Choose an answer
1
-1
Previous
Skip
Next
Question # 19
Choose an answer
Previous
Skip
Next
Question # 20
Choose an answer
1
2
-2
Previous
Skip
Next
Question # 21
cos 3a =_______;
Choose an answer
3sin a - 4sin3 a
4sin a - 3sin3 a
3cos3 a - 4cos a
4cos3a - 3cos a
Previous
Skip
Next
Question # 22
cos2a=______;
Choose an answer
cos2 a-sin2 a
2cos2 a-1
1-2 sin2 a
All of these
Previous
Skip
Next
Question # 23
sin (2
π
-
θ
)
Choose an answer
cos
θ
sin
θ
tan
θ
-sin
θ
Previous
Skip
Next
Question # 24
cos (
α
-
β
) = cos
α
cos
β
+ sin
α
sin
β
is true for all
Choose an answer
α
>
β
> 0
α
>
β
β
>
α
None of these
Previous
Skip
Next
Question # 25
Choose an answer
Previous
Skip
Next
Question # 26
Choose an answer
Previous
Skip
Next
Question # 27
Choose an answer
Previous
Skip
Next
Question # 28
Choose an answer
Previous
Skip
Next
Question # 29
Choose an answer
Previous
Skip
Next
Question # 30
Choose an answer
Previous
Skip
Next
Question # 31
Cos (
α
+
β
) - cos (
α
-
β
) =
Choose an answer
-2 sin
α
sin
β
2 sin
α
cos
β
-2 sin
α
cos
α
4 sin
α
cos
β
Previous
Skip
Next
Back
