6.

FindA+B. A=[2 5 7o] B=[6511] 0A [10 3o 01] O B The dimensions are not equal, so you cannot add. one [3 10 a 1] 0o[12 2571] If A = 3 then 4-1 = 11 -8 4 11 3 Use this fact and the methods of matrix algebra to solve the following system. 3x + 8v = 3 4x + 1ly = 6 OA x = 14 y =7 OB x = -15 Y = 6 OC x = 15 Y = 6 OD X = -15 y =7\fThe matrices A and B are defined as follows. Find 2(A + B). 5 6 A= B = 3 OA 12 10 4 6 OB 9 10 4 7 OC 6 5 2 3 OD 12 10 4 7The matrices A and B are defined as follows. Find A - B. 2 3 A B - 1 5 OA - 1 4 54 OB -5 3 1 5 OC 1 4 -5 5 OD 1 5 -5 4