Define Trace of a matrix.

Define Rank of a matrix.

Let psi_A be defined as trace of a matrix A which is sum of diagonal elements of a square matrix. Which of the following is true?

Let psi_(A) be defined as trace of a matrix which is sum of diagonal elements of a square matrix.psi_(lambda A+mu B)=

Let psi_A be defined as trace of a matrix A which is sum of diagonal elements of a square matrix. psi_(lambdaA+mu B) =

If the trace of the matrix A is 4 and the trace of matrix B is 7, the find trace of the matrix AB.

If the trace of a matrix A is 3 then the trace of 5A is

Define a diagonal matrix.

Define a diagonal matrix.

Define a diagonal matrix.

Define a diagonal matrix. Give one example.