"Let `A` be a matrix of order `3xx4` . If `R_1` denotes the first row   of `A` and `C_2`
Channel: Doubtnut
Date: 2020-06-28

"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`
 ."