1.	State the amplitude and the period for y = 2 cos .
		A.	amplitude = 2 , period =	B.	amplitude = -2, period = 4
		C.	amplitude = 2, period = 4	D.	amplitude = -2, period = 180°
		Hint
	2.	Which is the graph of y = cos 3?
		A.
		B.
		C.
		D.
		Hint
	3.	Simplify cos B + tan B sin B
		A.	sec B	B.	cot B
		C.	sin B	D.	cos B
		Hint
	4.	Rewrite (sin2 x + cos2 x) ÷ tan x as an expression involving only cot x.
		A.	cot2x	B.	1 – cot x
		C.	2 cot x	D.	cot x
		Hint
	5.	Which expression is equivalent to csc x – sin x?
		A.		B.	sin x + cos x
		C.	cos2x + sin2x	D.	sin x – cos x
		Hint
	6.	What is the exact value of cos (-60°)?
		A.		B.
		C.	0	D.	-1
		Hint
	7.	How is the function y = 3 sin ( +30) shifted?
		A.	shifted 30° to the left	B.	shifted down 30°
		C.	shifted up 30°	D.	shifted 30° to the right
		Hint
	8.	How is the function y = cos ( ¨C 30) shifted?
		A.	shifted 30° down	B.	shifted 30° up
		C.	shifted 30° to the right	D.	shifted 30° to the left
		Hint
	9.	Suppose tan = . Which of the following quadrants could contain ?
		A.	first and second	B.	first and third
		C.	second only	D.	first only
		Hint
	10.	Which expression is equivalent to sin ?
		A.	–sin (180° – )	B.	cos (90° + )
		C.	cos (270° + )	D.	cos ( + 180°)
		Hint
	11.	Find the exact value of sin 2 if sin = and 270° < < 360°.
		A.		B.
		C.		D.
		Hint
	12.	Find the exact value of sin 165°.
		A.		B.
		C.		D.
		Hint
	13.	Solve 2 cos 2 = 1.
		A.	150°, 210°	B.	30°, 330°
		C.	30°, 150°, 210°, 330°	D.	30°, 150°
		Hint
	14.	Which of the following contains a false solution to the equation sin cot – cos 2 = 0?
		A.	0° and 180°	B.	90° and 270°
		C.	0° and 270°	D.	90°
		Hint