Question

If for the square matrix A if[A] =0 then matrix is called

Answer 1

Answer:

A matrix is called square if n = m, that is, the number of rows equals the number of columns. A matrix square matrix A is called a diagonal matrix if aij = 0 for i not equal to j. In other word a diagonal matrix is zero everywhere off the diagonal. A square matrix A is called upper triangular if aij = 0 for i > j.