1.	Complete the identity _______.
		A.	cot x	B.	cos x
		C.	tan x	D.	sin x
		Hint
	2.	Complete the identity of _________.
		A.	cot x	B.	cos x
		C.	sin x	D.	tan x
		Hint
	3.	Find a numerical value of one trigonometric function of x if
		A.	sin x = 1	B.	cot x = 1
		C.	tan x = 1	D.	cos x = 1
		Hint
	4.	Find a numerical value of one trigonometric function of x if
		A.		B.
		C.		D.
		Hint
	5.	Complete the identity = _______.
		A.	tan x	B.	-cos x
		C.	sec x	D.	sin x
		Hint