If A is a row matrix as well as a column matrix then what is the order of A ?

If A is symmetric as well as skew-symmetric matrix, then A is

If A is symmetric as well as skew-symmetric matrix, then A is

Column I, Column II If A is an idempotent matrix and I is an identity matrix of the same order, then the value of n , such that (A+I)^n=I+127 is, p. 9 If (I-A)^(-1)=I+A+A^2++A^2, then A^n=O , where n is, q. 10 If A is matrix such that a_(i j)-(i+j)(i-j),t h e nA is singular if order of matrix is, r. 7 If a non-singular matrix A is symmetric, show that A^(-1) . is also symmetric, then order A can be, s. 8

A is a square matrix and I is an identity matrix of the same order. If A^(3)=O , then inverse of matrix (I-A) is

Give an example of (i) a row matrix which is also a column matrix (ii)a diagonal matrix which is not scalar (iii) a triangular matrix.

A matrix has 3 rows and 4 columns. How many elements are there in A?

If a square matrix A is orthogonal as well as symmetric, then

If A is 2xx3 matrix and B is a matrix such that A^T\ B and B A^T both are defined, then what is the order of B ?