Free PDF Download of CBSE Class 10 Maths Chapter 8 Introduction to Trigonometry Multiple Choice Questions with Answers. MCQ Questions for Class 10 Maths with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Maths Introduction to Trigonometry MCQs with Answers to know their preparation level.
Class 10 Maths MCQs Chapter 8 Introduction to Trigonometry
1. The value of cos 0°. cos 1°. cos 2°. cos 3°… cos 89° cos 90° is
(a) 1
(b) -1
(c) 0
(d) (frac{1}{sqrt{2}})
Answer
Answer: c
2. If x tan 45° sin 30° = cos 30° tan 30°, then x is equal to
(a) √3
(b) (frac{1}{2})
(c) (frac{1}{sqrt{2}})
(d) 1
Answer
Answer: d
3. 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
Answer: d
4. sin 2B = 2 sin B is true when B is equal to
(a) 90°
(b) 60°
(c) 30°
(d) 0°
Answer
Answer: d
5. If A, B and C are interior angles of a ΔABC then (cos left(frac{mathrm{B}+mathrm{C}}{2}right)) is equal to
Answer
Answer: a
6. If A and (2A – 45°) are acute angles such that sin A = cos (2A – 45°), then tan A is equal to
(a) 0
(b) (frac{1}{sqrt{3}})
(c) 1
(d) √3
Answer
Answer: c
7. If y sin 45° cos 45° = tan2 45° – cos2 30°, then y = …
(a) –(frac{1}{2})
(b) (frac{1}{2})
(c) -2
(d) 2
Answer
Answer: b
8. If sin θ + sin² θ = 1, then cos² θ + cos4 θ = ..
(a) -1
(b) 0
(c) 1
(d) 2
Answer
Answer: c
9. 5 tan² A – 5 sec² A + 1 is equal to
(a) 6
(6) -5
(c) 1
(d) -4
Answer
Answer: d
10. If sec A + tan A = x, then sec A =
Answer
Answer: d
11. If sec A + tan A = x, then tan A =
Answer
Answer: b
Answer
Answer: b
13. If x = a cos 0 and y = b sin 0, then b2x2 + a2y2 =
(a) ab
(b) b² + a²
(c) a²b²
(d) a4b4
Answer
Answer: c
14. What is the maximum value of (frac{1}{csc A})?
(a) 0
(b) 1
(c) (frac{1}{2})
(d) 2
Answer
Answer: b
15. What is the minimum value of sin A, 0 ≤ A ≤ 90°
(a) -1
(b) 0
(c) 1
(d) (frac{1}{2})
Answer
Answer: b
16. What is the minimum value of cos θ, 0 ≤ θ ≤ 90°
(a) -1
(b) 0
(c) 1
(d) (frac{1}{2})
Answer
Answer: b
17. Given that sin θ = (frac{a}{b}) , then tan θ =
Answer
Answer: c
18. If cos 9A = sin A and 9A < 90°, then the value of tan 5A is
(a) 0
(b) 1
(c) (frac{1}{sqrt{3}})
(d) √3
Answer
Answer: b
19. If in ΔABC, ∠C = 90°, then sin (A + B) =
(a) 0
(b) 1/2
(c) (frac{1}{sqrt{2}})
(d) 1
Answer
Answer: d
20. If sin A – cos A = 0, then the value of sin4 A + cos4 A is
(a) 2
(b) 1
(c) (frac{3}{4})
(d) (frac{1}{2})
Answer
Answer: d
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