1.	Solve sin2 x - sin x + 1 = cos2 x for 0 x < 2.
		A.	0, , ,	B.	0, ,
		C.	0, , ,	D.	0, , ,
		Hint
	2.	Solve 2 cos + 1 < 0 for 0 < 2.
		A.	< <	B.	< <
		C.	< < 2	D.	0 < or < < 2
		Hint
	3.	Solve 4 sin2 x + 3 = 4 for principal values of x. Express solutions in radians.
		A.	,	B.	-,
		C.	,	D.	-,
		Hint
	4.	Solve sec2 x = - 2 for -90° < x < 90°.
		A.	60°	B.	-30°, 30°
		C.	-60°, 60°	D.	0°
		Hint
	5.	Solve for 0 x < 2.
		A.		B.
		C.		D.
		Hint