1.Are the vectors

(-1,3,1) and (-1,4,1) in the span of {[1,0,1],[1,2,2],[0,4,2]}?

2. Calculate AB and BA if possible. If not, explain why.

A=1 0 2 B= 0 -1 1 2

-1 -3 0 1 0 2 3

-3 -1 0 0

How would you solve these two questions? Can someone tell me how to do this problem and how to solve it? Please and thanks in advance