I have this question to answer but I have no clue whatsoever what to do. I'm a first year student so this Maple stuff is all pretty much new to me. Can't seem to figure out what "det" is. 

For the matrices A = Matrix([[2,-1,1],[3,1,-1],[0,2,2]]) and B =  Matrix([[2,1,5],[4,3,8],[0,-1,0]]) verify that det(A . B) = det(A) det(B)

How do I do this?