Let `A` be a matrix of order `3xx4` . If `R_1` denotes the first row of `A` and `C_2` denotes its second column, then determine the orders of matrices `R_1` and `C_2` .

Explanation

`A=[[a_(11), a_(12), a_(13), a_(14)], [a_(21), a_(22), a_(23), a_(24)], [a_(31), a_(32), a_(33), a_(34)]]`

Row 1 has 4 columns `[[a_(11), a_(12), a_(13), a_(14)]]`

Order of Row 1 is `1 xx 4`

Column 2 has 1 columns and 3 rows `[[a_(12)], [a_(22)], [a_(32)]]`

Order of column 2 is ` 3 xx 1`