1.	Which pair of vectors is perpendicular?
		A.	,	B.	,
		C.	,	D.	,
		Hint
	2.	Find the inner product of and if and .
		A.	14	B.	-8
		C.	-12	D.	-14
		Hint
	3.	Find if and .
		A.		B.
		C.		D.
		Hint
	4.	The cross product of two vectors is _______.
		A.	a dot product	B.	perpendicular to both vectors
		C.	not a vector	D.	parallel to both vectors
		Hint
	5.	Evaluate if and .
		A.	-39	B.	44
		C.	60	D.	21
		Hint