The Total solution for NCERT class 6-12
Let A be a matrix oforder 3 × 4. If R1 denotes the first row of A and C2 denotesits second column, then determine the orders of matrices R1 andC2.
Given A be a matrix of order 3 × 4.
So, A = [ai j] 3×4
R1 = first row of A = [a11, a12,a13, a14]
So, order of matrix R1 = 1 × 4
C2 = second column of
Therefore order of C2 = 3 × 1