1.	Solve the equation cos x = .
		A.	x equals 120°, 240° or any angle coterminal with these angles.
		B.	x equals 60°, 300° or any angle coterminal with these angles.
		C.	x equals 150°, 210° or any angle coterminal with these angles.
		D.	x equals 30°, 330° or any angle coterminal with these angles.
		Hint
	2.	Evaluate sin (arctan ). Assume that the angle is in Quadrant I.
		A.		B.
		C.		D.
		Hint
	3.	If f = 9 and d = 13, find the measure of .
		A.	about 34.7°	B.	about 46.2°
		C.	about 43.8°	D.	about 55.3°
		Hint
	4.	A security light is being installed outside a loading dock. The light is mounted 25 feet above the ground. The light must be placed at an angle so that it illuminates a parking lot. If the end of the parking lot is 125 feet from the loading dock, what should be the angle of depression of the light?
		A.	about 11.5°	B.	about 78.7°
		C.	about 11.3°	D.	about 78.5°
		Hint
	5.	If A = 39° and b = 7.2, find c.
		A.	about 8.9 units	B.	about 5.6 units
		C.	about 9.3 units	D.	about 11.4 units
		Hint