1.	Solve sin x cos x - cos x = 0 for principal values of x. Express solutions in degrees.
		A.	30°, 60°	B.	60°, 90°
		C.	30°, 90°	D.	150°, 90°
		Hint
	2.	Solve sin2 x - sin x + 1 = cos2 x for 0 x < 2.
		A.	0, , ,	B.	0, ,
		C.	0, , ,	D.	0, , ,
		Hint
	3.	Solve the equation cos 2x = sin x for 0° x < 360°.
		A.	30°, 210°, 270°	B.	90°, 150°, 270°
		C.	30°, 150°, 270°	D.	30°, 90°, 150°
		Hint
	4.	Solve cos x - 1 = 0 for all real values of x.
		A.	+ k	B.	+2k, + 2k
		C.	+2k, + 2k	D.	+ 2k, +2k
		Hint
	5.	Solve 4 sin2 x + 3 = 4 for principal values of x. Express solutions in radians.
		A.	,	B.	,
		C.	-,	D.	-,
		Hint