Question

if ( 5 6 7 )A=(1 3 4 ).what is the order matrix of A​

Answer 1

matrix is possible only when number of column of first matrix is = number of second matrix

in our case first matrix is ( 5 6 7 ) with order of 1×3 (1 row , 3 column)

so number of row of matrix A will be 3

from rule of multiplication we know the order of result Matrix can be expressed as >

row of first matrix. × (by) column of 2nd matrix.

as the order of result Matrix is 1×3

so order of matrix A is 3×3