A square matrix, all of whose elements except those in the leading diagonal are zero is called a ___ matrix.

Assertion (A) [(7,0,0),(0,7,0),(0,0,7)] is a scalar matrix Reason (R) : if all the elements of the principal diagonal are equal, it is called a scalar matrix

A square matrix A is called orthogonal if.

Which one of the following is wrong? (A) The elements on the main diagonal of a symmetric matrix are all zero (B) The elements on the main diagonal of a skew - symmetric matrix are all zero (C) For any square matrix A,AA' is symmetric (D) For any square matrix A,(A+A')^(2)=A^(2)+(A')+2AA'

A matrix which is not a square matrix is called a …. Matrix .

A matrix which is not a square matrix is called a ….. Matrix.

Which one of the following is wrong? 1.The elements on the main diagonal of a symmetric matrix are all zero 2. The elements on the main diagonal of a skew-symmetric matrix are all zero 3. For any square matrix A,(1)/(2)(A+A') is symmetric 4. For any square matrix A,(1)/(2)(A-A') is skew-symmetric

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

Show that the elements on the main diagonal of a skew-symmetric matrix are all zero.

Show that the elements on the main diagonal of a skew-symmetric matrix are all zero.

Show that the elements on the main diagonal of a skew-symmetric matrix are all zero.