1.	Solve cos x - 1 = 0 for all real values of x.
		A.	+ k	B.	+ 2k, +2k
		C.	+2k, + 2k	D.	+2k, + 2k
		Hint
	2.	Solve 4 sin2 x + 3 = 4 for principal values of x. Express solutions in radians.
		A.	-,	B.	,
		C.	,	D.	-,
		Hint
	3.	Solve + 1 = 2 sin x for all real values of x.
		A.	+ 2k	B.	+ k
		C.	k	D.	+ 2k
		Hint
	4.	Solve 4 sin2 x > 3 for 0 x .
		A.	0 x	B.
		C.		D.
		Hint
	5.	Solve for 0 x < 2.
		A.		B.
		C.		D.
		Hint