Q-4: [5+5 marks] a) Determine whether the vector (9,0,9) is a linear combination of the vectors (1.1,0), (1.0,1),(2,1,1) and (0.1.-1). b) Determine whether the vectors (0,3,-1,2),(1,2,1.-2) and (3.0,5,-10) in R* are linearly independent