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ECAT - Practice Test - Maths - Trigonometry Quiz

Attempt 10 MCQs on ECAT - Practice Test - Maths - Trigonometry | Quiz 5

41. What is the general solution of cos θ = 0?



42. What is the general solution of tan θ = 0?



43. What is the principal value of sin⁻¹(-1/2)?



44. What is the principal value of cos⁻¹(-1/2)?



45. What is the principal value of tan⁻¹(-1)?



46. In the sine rule, a/sin A equals:



47. If the angle of elevation of a tower is 45°, what is the relation between height (h) and distance (d)?



48. A tower is observed from a point 100 m away with angle of elevation 30°. What is the height of the tower?



49. If a tree of height 10 m casts a shadow of 10 m, what is the angle of elevation of the sun?



50. What is the value of sin 45°?



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