" 17.If matrix "A=[[(1)/(1),-1],[-1,1]]" and "A^(2)=kA" ,then "

In a square matrix A=[a_(ij)] if igtj and a_(ij)=0 then matrix is called Square matrix Lower triangular matrix Upper triangular matrix Unit matrix

In the matrix [[1,0,5],[2,-3,4]] order of matrix matrix is………

In the matrix [[1,0,5],[2,-3,4]] order of matrix matrix is………

" For the matrix A and identity matrix "I," if "AB=BA=I" then that matrix "B" is inverse matrix and "A" is invertible "A^-1=

The matrix A = [(1, 2),( 0,1)] is (a) a Unit matrix (b) a diagonal matrix (c) a scalar matrix (d) None of these

The matrix A = [(1, 2),( 0,1)] is (a) a Unit matrix (b) a diagonal matrix (c) a scalar matrix (d) None of these

For the matrix A and identity matrix I if AB=BA=I then that matrix B is inverse matrix and A is invertible (AB)^(-1)=

If the matrix A is both symmetric and skew symmetric, then A is a diagonal matrix A is a Zero matrix Ai is a Square matrix None of these

If the matrix A is both symmetric and skew symmetric, then: A)A is a diagonal matrix B)A is a zero matrix. C) A is a square matrix D)None of these.

The element a_(ij) of square matrix is given a_(ij) = (i+j) (i - j) , then matrix A must be a)Skew - symmetric matrix b)Triangle matrix c)Symmetric matrix d)Null matrix