Introduction to Trigonometry MCQs Mock Test of 10th Class Mathematics

Welcome to your Introduction to Trigonometry MCQs Mock Test of 10th Class Mathematics

1. 
1. The value of cos 0°. cos 1°. cos 2°. cos 3°… cos 89° cos 90° is
2. 
2. In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. The value of tan C is:
3. 
3. If x tan 45° sin 30° = cos 30° tan 30°, then x is equal to
4. 
4. (Sin 30°+cos 60°)-(sin 60° + cos 30°) is equal to:
5. 
5. If x and y are complementary angles, then
6. 
6. The value of tan 60°/cot 30° is equal to:
7. 
7. sin 2B = 2 sin B is true when B is equal to
8. 
8. 1 – cos2A is equal to:
9. 
9. If A and (2A – 45°) are acute angles such that sin A = cos (2A – 45°), then tan A is equal to
10. 
10. sin (90° – A) and cos A are:
11. 
11. If cos X = ⅔ then tan X is equal to:
12. 
12. If cos X = a/b, then sin X is equal to:
13. 
13. The value of sin 60° cos 30° + sin 30° cos 60° is:
14. 
14. 2 tan 30°/(1 + tan230°) =
15. 
15. sin 2A = 2 sin A is true when A =
16. 
16. The value of the expression [cosec (75° + θ) – sec (15° – θ) – tan (55° + θ) + cot (35° – θ)] is
17. 
17. If cos(α + β) = 0, then sin(α – β) can be reduced to
18. 
18. If sin A + sin2A = 1, then the value of the expression (cos2A + cos4A) is
19. 
19. If cos 9α = sinα and 9α < 90°, then the value of tan 5α is
20. 
20. The value of the expression [sin2(22∘)+sin2(68∘)cos2(22∘)+cos2(68∘)+sin2(63∘)+cos 63∘ sin 27∘] is
21. 
21. The value of the expression sin6θ + cos6θ + 3 sin2θ cos2θ is
22. 
22. (sin30° + cos30°) – (sin 60° + cos60°)
23. 
23. Value of tan30°/cot60° is:
24. 
24. sec2θ – 1 = ?
25. 
25. The value of sin θ and cos (90° – θ)
26. 
26. If cos A = 4/5, then tan A = ?
27. 
27. The value of the expression [cosec (75° + θ) – sec (15° - θ) – tan (55° + θ) + cot (35° - θ)] is
28. 
28. The value of (tan1° tan2° tan3° ... tan89°) is
29. 
29. If sin A + sin2 A = 1, then cos2 A + cos4 A = ?
30. 
30. If sin A = 1/2 and cos B = 1/2, then A + B = ?
31. 
31. If cos9α = sin α and 9α < 90°, then the value of tan 5α is
32. 
32. If a pole 6m high casts a shadow 2√3 m long on the ground, then the sun’s elevation is
33. 
33. If cos (A + B) = 0, then sin (A – B) is reduced to:
34. 
Q34. If cos 9A = sin A and 9A < 90°, then the value of tan 5A is
35. 
Q35. sin 2B = 2 sin B is true when B is equal to
36. 
Q36. What is the maximum value of 1 cosec A ?
37. 
Q37. If A and (2A – 45°) are acute angles such that sin A = cos (2A – 45°), then tan A is equal to
38. 
Q38. What is the minimum value of cos θ, 0 ≤ θ ≤ 90°
39. 
Q39. If y sin 45° cos 45° = tan² 45° – cos² 30°, then y = …
40. 
Q40. If sin A – cos A = 0, then the value of sin4 A + cos4 A is
41. 
Q41. If sin θ + sin² θ = 1, then cos² θ + cos4 θ = ..
42. 
Q42. 5 tan² A – 5 sec² A + 1 is equal to
43. 
Q43. If x = a cos 0 and y = b sin 0, then b²x² + a²y² =
44. 
44. The value of (sin 45° + cos 45°) is
45. 
45. If sin A = 1/2 , then the value of cot A is
46. 
46. If ∆ABC is right angled at C, then the value of cos(A+B) is
47. 
Q47. What is the minimum value of sin A, 0 ≤ A ≤ 90°
48. 
Q48. The value of cos 0°. cos 1°. cos 2°. cos 3°… cos 89° cos 90° is …
49. 
Q49. If x and y are complementary angles, then
50. 
Q50. If in ΔABC, ∠C = 90°, then sin (A + B) =

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