Exercise : Trigonometry MCQ Questions and Answers
Question 1
Cos²2θ =
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Correct Answer : D. 1 + sin²θ
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Question 2
Flat surface like blackboard is classified as
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Correct Answer : D. plane
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Question 3
An aero lift airplane can fly at airspeed of 300 mph. If there is a wind blowing towards the cast at 50 mph, what should be the plane's compass heading in order for its course to be 30°? What will be
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Correct Answer : D. 21.7?, 321.8 mph
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Question 4
Determine the value of the angle of an isosceles spherical triangle ABC whose given parts are b = c = 54°28' and a = 92°30'.
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Correct Answer : A. 89°45’
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Question 5
If cos 55? and sin 55? = 0.8 each then answer of cos 125? + 5 sin 55? is
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Correct Answer : D. 2.4
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Question 6
For Cosine Rule of any triangle ABC, a? is equal to
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Correct Answer : D. b? + c? - 2bc cos A
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Question 7
If sec 2A =1/sin13A, determine the angle A in degrees.
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Correct Answer : D. 6?
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Question 8
1 + cot²2θ =
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Correct Answer : A. sec²θ
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Question 9
Solve for x, if tan 3x = 5 tan x
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Correct Answer : B. 20.705?
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Question 10
Solve for x in the equation: arc tan (x + 1) + arc tan (x – 1) = arc tan (12)
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Correct Answer : C. 1.34
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