1.	Write the equation of the sine function if the amplitude is 5 and the period is 360°.
		A.	y = - sin 5	B.	y = 5 sin
		C.	y = -5 sin 5	D.	y = sin 5
		Hint
	2.	Write an equation of the function whose graph is shown.
		A.	y = 2 sin	B.	y = 4 sin
		C.	y = 2 sin	D.	y = sin 4
		Hint
	3.	Simplify the expression sin x(1 + cot2x)
		A.	1 + cos2x	B.	sin2x
		C.	sin x tan x	D.	csc x
		Hint
	4.	Simplify cos B + tan B sin B
		A.	cos B	B.	sin B
		C.	cot B	D.	sec B
		Hint
	5.	Express using only sin x and cos x.
		A.		B.	sin x + cos x
		C.	cos2x	D.	sin x - cos x
		Hint
	6.	What is the exact value of cos (-60°)?
		A.		B.	-1
		C.	0	D.
		Hint
	7.	Find all solutions of sin 2x = cos x if .
		A.	,	B.	,
		C.	,	D.	,
		Hint
	8.	What is the midline of the function y = 2 sin – 4?
		A.	y = –4	B.	y = –2
		C.	y = 4	D.	y = 2
		Hint
	9.	How is the function y = sin + 2 shifted?
		A.	shifted 2 units to the right	B.	shifted 2 units to the left
		C.	shifted 2 units down	D.	shifted 2 units up
		Hint
	10.	Simplify .
		A.	sin	B.	sec
		C.	cos	D.	csc
		Hint
	11.	Which statement is true?
		A.	sin 45° = –cos (–45°)
		B.	cos 225° = sin 45°
		C.	cos 135° = sin 45°
		D.	sin 30° = cos 300°
		Hint
	12.	Find the exact value of sin 165°.
		A.		B.
		C.		D.
		Hint
	13.	Find cos if sin x = and x is in the second quadrant.
		A.		B.
		C.		D.
		Hint
	14.	Solve cos = 3 cos – 1.
		A.	30°, 150°	B.	30°, 330°
		C.	60°, 300°	D.	60°, 120°
		Hint