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ECAT Mathematics Chapter 16 Solution of Trigonometric Functions Online Test MCQs With Answers
Question # 1
Considering Cosine Rule of any triangle ABC, possible measures of angle A includes
Choose an answer
Angle A is obtuse
Angle A is acute
Angle A is right-angle
All of above
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Question # 2
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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 # 3
Sine rule for a triangle states that
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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
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Question # 4
If sin 6
θ
+ sin 4
θ
+ sin 2
θ
, then
θ
=
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Question # 5
cot
θ
= sin 2
θ
if
θ
=
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Question # 6
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all
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Question # 7
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30°
45°
60°
75°
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Question # 8
The solution set of the equation 1 + Cos x = 0 is __________
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none of these
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Question # 9
The solution of the equation 3 tan
2
x = 1 is ____________
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none of these
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Question # 10
cot
θ
= sin 2
θ
if
θ
=
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Question # 11
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none of these
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Question # 12
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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 # 13
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Question # 14
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none of these
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Question # 15
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Question # 16
If sin (
π
cos
θ
) = cos (
π
sin
θ
), then which of the following is correct?
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Question # 17
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1
2
3
None of these
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Question # 18
The general solution of tan 3x = 1 is
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Question # 19
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trigonometric equation
conditional equation
identity
None
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Question # 20
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Question # 21
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 # 22
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Question # 23
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Question # 24
The general value of
θ
satisfying the equation 2 sin
2
θ
- 3 sin
θ
-2 = 0 is
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Question # 25
The solution set of trigonometric equation contains
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one element
two elements
three elements
Infinite elements
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Question # 26
The number of solution of the equation tan x + sec x = 2 cos x lying in the interval [0, 2
π
] is
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0
1
2
3
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Question # 27
Choose an answer
A finite non-empty set
Null set
Both a and b
None of these
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