I need help with those questions

2 4 2 4 1. 1.5143: [2 5 3 1], 3 8 2 3 2 21. Write the matrix w = [4] as a system of linear equations. 5 2 b. Find the solution set if it exists to the systemAx = [4-] in parametric vector form. 5 3 c. Write the solution set if it exists to the system Ax = [2] in parametric vector fonn. 6 2. Suppose AB = [5 4] and B = [7 3]. Find A. 2 3 2 1 a 1 3. Determine all value(s) of a such that {[ ] , [D is linearly independent. 2 a a