Class 10 Maths MCQs for Introduction to Trigonometry

Class 10 Maths MCQs for Introduction to Trigonometry

Class 10 Maths MCQs for Introduction to Trigonometry

Q1. The value of cos 0°. cos 1°. cos 2°. cos 3°… cos 89° cos 90° is
(a) 1
(b) -1
(c) 0
(d) 1/√2

Answer: c

Q2. If x and y are complementary angles, then
(a) sin x = sin y
(b) tan x = tan y
(c) cos x = cos y
(d) sec x = cosec y

Answer: d

Q3. If sin θ + sin² θ = 1, then cos² θ + cos4 θ = ..
(a) -1
(b) 0
(c) 1
(d) 2

Answer: c

Q4. 5 tan² A – 5 sec² A + 1 is equal to
(a) 6
(6) -5
(c) 1
(d) -4

Answer: d

Q5. If sin A – cos A = 0, then the value of sin4 A + cos4 A is
(a) 2
(b) 1
(c) 3/4
(d) 1/2

Answer: d

Q6. sin (90° – A) =
(a) sin A
(b) tan A
(c) cos A
(d) cosec A

Answer: c

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