Let A be a matrix of order 3 × 4. If R1 denotes the first row of A and C2 denotes its second column, then determine the orders of matrices R1 and C2.
Let A be a matrix of order 3×4.
A = [aij]3×4
R1 = first row of A = [a11,a12,a13,a14]
So, order of matrix R1 = 1×4
C2 = second column of A =
Order of C2 = 3×1