Mathematics Practice Test – Trigonometry

If Cos θ = - Cos 30° and 0° < θ < 360°, find the values of θ.

A. 225°, 300°      B. 100°, 180°      C. 150°, 210°      D. 180°, 270°

In a right angled triangle, if tan θ = . What is cos θ - sin θ?

A.      B.      C.      D.

Find without using tables;

if 4 sin²x - 3 = 0 where 0° ≤ x ≤ 90°

A. 30°     B. 60°     C. 90°     D. 120°

If cos (x + 40^o) = 0.0872, what is the value of x?

A. 85^o    B. 75^o     C. 65^o     D. 45^o

An object is 6m away from the base of a mast. The angle of depression of the object from the top of the mast is. Find correct to 2 decimal places, the height of the mast.

A. 8.60m    B. 7.51m    C. 7.15m    D. 5.04m