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 Pre General Science Mathematics Chapter 16 Solution of Trigonometric Equations Online Test MCQs With Answers
Question # 1
The number of values of x in the interval [0, 5
π
] satisfying the equation 3 sin
2
x - 7 sinx + 2 = 0 is
Choose an answer
0
5
6
10
Previous
Skip
Next
Question # 2
Choose an answer
none of these
Previous
Skip
Next
Question # 3
The general solution of tan 3x = 1 is
Choose an answer
Previous
Skip
Next
Question # 4
In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then Ĉ is
Choose an answer
69°
66°
60°
63°
Previous
Skip
Next
Question # 5
The solution of the equation cos
2
θ
+ sin
θ
+ 1 = 0 lies in the interval
Choose an answer
Previous
Skip
Next
Question # 6
Choose an answer
A finite non-empty set
Null set
Both a and b
None of these
Previous
Skip
Next
Question # 7
General solution of 1 + cos x = 0 is
Choose an answer
Previous
Skip
Next
Question # 8
For Cosine Rule of any triangle ABC, b
2
is equal to
Choose an answer
a
2
- c
2
+ 2ab cos A
a
3
+ c
3
- 3ab cos A
a
2
+ c
2
- 2ac cos B
a
2
- c
2
4bc cos A
Previous
Skip
Next
Question # 9
Choose an answer
Previous
Skip
Next
Question # 10
The number of points of intersection of two curves y = 2 sin x and y = 5x
2
+ 2x + 3 is
Choose an answer
0
1
2
None of these
Previous
Skip
Next
Question # 11
Choose an answer
No solution
One real solution
More than one real solution
None of these
Previous
Skip
Next
Question # 12
The general value of
θ
satisfying the equation 2 sin
2
θ
- 3 sin
θ
-2 = 0 is
Choose an answer
Previous
Skip
Next
Question # 13
By expressing cos 113° in terms of trigonometrical ratios, answer will be
Choose an answer
− cos 76° = -0.7093
− cos 65° = -0.4258
− cos 67° = -0.3907
− cos 62° = -0.8520
Previous
Skip
Next
Question # 14
The solution of the equation 3 tan
2
x = 1 is ____________
Choose an answer
none of these
Previous
Skip
Next
Question # 15
Choose an answer
Previous
Skip
Next
Question # 16
Choose an answer
Previous
Skip
Next
Question # 17
Choose an answer
Previous
Skip
Next
Question # 18
cot
θ
= sin 2
θ
if
θ
=
Choose an answer
Previous
Skip
Next
Question # 19
Choose an answer
none of these
Previous
Skip
Next
Question # 20
The solution set of the equation 1 + Cos x = 0 is __________
Choose an answer
none of these
Previous
Skip
Next
Question # 21
If 4 sin
2
θ
=1, then values of
θ
are
Choose an answer
Previous
Skip
Next
Question # 22
Choose an answer
I and
I
I quadrants
I
I and
I
I
I quadrants
I
I
I and
I
V
quadrants
none of these
Previous
Skip
Next
Question # 23
Choose an answer
Previous
Skip
Next
Question # 24
Sine rule for a triangle states that
Choose an answer
a/sin A = b/sin B = c/sin C
sin A/a = sin B/b = sin C/c
a/sin A + b/sin B + c/sin C
2a/sin A = 2b/sin B = 2c/sin C
Previous
Skip
Next
Question # 25
Choose an answer
Previous
Skip
Next
Question # 26
General solution of tan 5
θ
= cot 2
θ
is
Choose an answer
Previous
Skip
Next
Question # 27
Choose an answer
Previous
Skip
Next
Question # 28
If Sin A = sin B, cos A = cos B, then the value of A in terms of B is
Choose an answer
Previous
Skip
Next
Question # 29
Choose an answer
Previous
Skip
Next
Question # 30
The solution set of trigonometric equation contains
Choose an answer
one element
two elements
three elements
Infinite elements
Previous
Skip
Next
Back
