A EC B ABC C 4A2B D CDA E BCD F BASolutionAEC is not defined
A) EC
B) AB+C
C) 4A-2B
D) CD+A
E) BC+D
F) BA
Solution
A)EC is not defined as E is a 3*3 matrix and C is a 2*3 column of E is not equal to rows of C
B) AB+C is not defined as AB is a 2*2 matrix and C is a 3*2 matrix
C)4A-2B =(0 -4) - (4 2 = ( -4 -6
8 12) 8 0) 0 12)
D)CD +A = [1×4+2×0+3×1 1×5+2×3+3×0 + [0 -1 = [7 -1 + [0 -1 = [0 -2
0×4+2×0+1×1 0×5+2×3+1×0] 2 3] 1 6] 2 3] 3 9]
