If every non diagonal element is zero and every diagonal element is unity. Then that matrix is called

If every non diagonal element in matrix A is zero and every diagonal element is Unity then A Square matrix A is said to be a

If every non diagonal element in matrix A is zero and every diagonal element is equal then A Square matrix A is said to be a

If every non diagonal element in matrix A is zero and every diagonal element is equal then A Square matrix ‘A’ is said to be a

If every non diagonal element of a square matrix is zero and every diagonal element is equal then the matrix is called

The sum of the principal diagonal elements of a square matrix is called

The sum of the principal diagonal elements of a square matrix is called

The inverse of a diagonal matrix is a:

If all the diagonal elements in a diagonal matrix is 0, then it is a ________ matrix.