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ECAT Pre General Science Mathematics Chapter 16 Solution of Trigonometric Equations Online Test MCQs With Answers
Question # 1
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Question # 2
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all
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Question # 3
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trigonometric equation
conditional equation
identity
None
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Question # 4
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Question # 5
For Cosine Rule of any triangle ABC, b
2
is equal to
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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
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Question # 6
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Question # 7
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Question # 8
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both a & c
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Question # 9
The solution set of sin x + cos x = 0 is
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Question # 10
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 # 11
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A finite non-empty set
Null set
Both a and b
None of these
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Question # 12
General solution of 1 + cos x = 0 is
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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
The solution of the equation cos
2
θ
+ sin
θ
+ 1 = 0 lies in the interval
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Question # 16
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Question # 17
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 # 18
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 # 19
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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 # 20
The solution set of trigonometric equation contains
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one element
two elements
three elements
Infinite elements
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Question # 21
General solution of tan 5
θ
= cot 2
θ
is
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Question # 22
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Question # 23
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none of these
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Question # 24
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Question # 25
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Question # 26
If sin (
π
cos
θ
) = cos (
π
sin
θ
), then which of the following is correct?
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Question # 27
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none of these
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