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ECAT Pre General Science Mathematics Chapter 16 Solution of Trigonometric Equations Online Test MCQs With Answers
Question # 1
The solution set of sin x + cos x = 0 is
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Question # 2
The solution set of trigonometric equation contains
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one element
two elements
three elements
Infinite elements
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Question # 3
General solution of 1 + cos x = 0 is
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Question # 4
The general solution of tan 3x = 1 is
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Question # 5
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I and
I
I quadrants
I
I and
I
I
I quadrants
I
I
I and
I
V
quadrants
none of these
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Question # 6
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I and
I
I quadrants
I
I and
I
I
I quadrants
I
I and
I
V
quadrants
none of these
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Question # 7
The solution of the equation 3 tan
2
x = 1 is ____________
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none of these
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Question # 8
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none of these
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Question # 9
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From an empty set
1
2
>2
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Question # 10
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Question # 11
The general value of
θ
satisfying the equation 2 sin
2
θ
- 3 sin
θ
-2 = 0 is
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Question # 12
By expressing sin 125° in terms of trigonometrical ratios, answer will be
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sin 65° = 0.9128
sin 55° = 0.8192
sin 70° = 0.5384
sin 72° = 0.1982
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Question # 13
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none of these
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Question # 14
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Question # 15
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Question # 16
The solution of the equation cos
2
θ
+ sin
θ
+ 1 = 0 lies in the interval
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Question # 17
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Question # 18
The solution set of the equation 4 cos
2
x - 3 + 0 is
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none of these
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Question # 19
If 4 sin
2
θ
=1, then values of
θ
are
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Question # 20
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Question # 21
cot
θ
= sin 2
θ
if
θ
=
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Question # 22
If sin (
π
cos
θ
) = cos (
π
sin
θ
), then which of the following is correct?
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Question # 23
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30°
45°
60°
75°
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Question # 24
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Question # 25
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Question # 26
By expressing cos 113° in terms of trigonometrical ratios, answer will be
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− cos 76° = -0.7093
− cos 65° = -0.4258
− cos 67° = -0.3907
− cos 62° = -0.8520
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Question # 27
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Question # 28
General solution of tan 5
θ
= cot 2
θ
is
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Question # 29
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No solution
One real solution
More than one real solution
None of these
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Question # 30
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