The number of matrices having 7 elements is……………

Find the number of matrices having 12 elements

Find the number of matrices having 12 elements

The number of 2 xx 2 matrices having elements 0 and 1 is

The number of matrices A (having real entries) of order 3times3 having adjoint matrix as [[2,1,7],[1,4,4],[1,1,3]] is

The number of matrices A (having real entries) of order 3times3 having adjoint matrix as [[2,1,7],[1,4,4],[1,1,3]] is

Find all possible orders of matrices having 7 elements.

If a set A has 12 elements, find the number of subsets of A having 4 elements

Using the elements -3,-2,-1,0,1,2,3 A.the number of 3xx3 matrices having trace 0 is 35.