Matrix & Determinants

1. A matrix A is both symmetric and skew symmetric if A is

If A and B are invertible matrix then (AB)^-1 =

If A is any invertible matrix then A is

1. Let A be a square matrix of order 3x3 then| kA| = .

1. which of the following is correct

If A is an invertible matrix of order 3 and |A|=5 then find |Adj A|

If A is square matrix of order 3 such that |AdjA| =64 , find |A|

If the order of matrix A is m×p. And the order of B is p×n. Then the order of matrix AB is

When you multiply a matrix by the identity matrix, you obtain the

When you multiply a matrix by the inverse matrix, you obtain the