Let `A_r` denote a scalar matrix of order `nxxn` with each diagonal element as r. Then, the trace of the matrix `(A_1A_2A_3...A_n),` is

Let A_(i) denote a square matrix of order n xx n with every element a; Then,the sum of fall elements of the product matrix (A_(1)A_(2)...A_(n)) is

If A=[a_(ij)] is a scalar matrix of order nxxn such that a_(ii)=k for all I then trace of a=

Let A be a square matrix of order 3 so that sum of elements of each row is 1 . Then the sum elements of matrix A^(2) is

Let A be a square matrix of order 3 so that sum of elements of each row is 1 . Then the sum elements of matrix A^(2) is

Let A be a square matrix of order 3 so that sum of elements of each row is 1 . Then the sum elements of matrix A^(2) is

Let A be a square matrix of order 3 so that sum of elements of each row is 1 . Then the sum elements of matrix A^(2) is

Let A be a matrix of order 3xx3 whose elements are given by a_(ij)=2i-j obtain the matrix A.

Trace of a scalar matrix of order 4xx4 whose one of the principal diagonal elements is 4 is _______ .

If A= (a_(ij) ) is a scalar matrix of order nxx n such that a_(ii)=k for all i, then trace of A is equal to