let 1 2 3 4 a= 2 4 6 8 3 5 7 9 determine and b -1 0 2 2 -1 -1 2 0 0 i 0 2 sec. 2.2 matrix multiplication (a) 3a (b) 2bA) [3 6 9 12; 6 12 18 24; 9 15 21 27]
B) [-2 0 4 4; -2 -2 4 0; 0 6 0 2]
C) [3 6 9 12; 6 12 18 24; 9 10 14 18]
D) [-1 0 2 2; -1 -1 2 0; 0 2 0 1]
