1.	Simplify sec cos .
		A.	1	B.	sin2
		C.	tan2 - 1	D.	cos2
		Hint
	2.	Simplify cos B + tan B sin B
		A.	cos B	B.	sin B
		C.	cot B	D.	sec B
		Hint
	3.	Which expression is equivalent to csc x – sin x?
		A.	sin x – cos x	B.
		C.	cos2x + sin2x	D.	sin x + cos x
		Hint
	4.	What is the exact value of cos (-60°)?
		A.		B.
		C.	-1	D.	0
		Hint
	5.	2 cot x sin2x is equivalent to ________.
		A.	1 + sin2x	B.	sin 2x
		C.	cos	D.	cos2x + sin x
		Hint
	6.	What is the amplitude and period of the function y = 3 cos (-)?
		A.	Amplitude = 3, Period = –	B.	Amplitude = 3, Period =
		C.	Amplitude = 3, Period = 2	D.	Amplitude = 2, Period =
		Hint
	7.	How many periods will the function y = 2sincontain in 9 radians?
		A.		B.	3
		C.	27	D.
		Hint
	8.	What is the midline of the function y = 2 sin – 4?
		A.	y = –4	B.	y = 2
		C.	y = –2	D.	y = 4
		Hint
	9.	A runner's pace oscillates during a race between 9 mph and 13 mph. For a one-hour race, this person's pace oscillates 20 times. What is a sine function that represents this situation?
		A.	y = 2 sin + 11	B.	y = 4 sin + 9
		C.	y = 4 sin + 11	D.	y = 2 sin + 9
		Hint
	10.	Simplify .
		A.	sec	B.	sin
		C.	cos	D.	csc
		Hint
	11.	Find the exact value of cos 255°.
		A.		B.
		C.		D.
		Hint
	12.	Suppose sin = and sin 2 = . In which quadrant(s) could this be?
		A.	second only	B.	first and second
		C.	first or fourth	D.	first only
		Hint
	13.	Solve cos = 3 cos – 1.
		A.	30°, 150°	B.	60°, 300°
		C.	30°, 330°	D.	60°, 120°
		Hint
	14.	Which of the following contains a false solution to the equation sin cot – cos 2 = 0?
		A.	90° and 270°	B.	0° and 180°
		C.	90°	D.	0° and 270°
		Hint