1.	Which product is not defined?
		A.
		B.
		C.	[16 12 5]
		D.	[11 4 -3]
		Hint
	2.	Find the dimensions of A6 × 3 · B3 × 1.
		A.	6 × 1	B.	3 × 3
		C.	3 × 1	D.	6 × 3
		Hint
	3.	Find
		A.		B.
		C.		D.
		Hint
	4.
		A.		B.
		C.		D.	[10 37]
		Hint
	5.	The product gives the coordinates of two points on line AB that has been rotated 90° counterclockwise about the origin. Name the coordinates of A' and B'.
		A.	A'(1, -3), B'(1, 1)
		B.	A'(-1, -3), B'(1, 1)
		C.	A'(1, 1), B'(-1, -3)
		D.	A'(-1, 1), B'(1, -3)
		Hint