Matrices Test -...

Let A be a 5 x 7 matrix, then each column of A contains

If 2[3  4]  +  [1  y]  = [7   0]  [5  x]     [0  1]    [10  5] then the value of x - y is

If a matrix has 13 elements then the number of possible order it can have, is

If A is a square matrix, then A is skew symmetric iff

The number of all possible matrices of order 2 x 3 with each entry 0 or 1 is

Let A, B, C, D be n*n matrices, each with non-zero determinant. If ABCD = I, then B^-1 is

If A and B are skew symmetric matrices of same order, then

[8   2   0] [4   0   2] [12  6  5] The trace of the matrix is

Each diagonal element of a skew-symmetric matrix is

For a 2*2 matrix, A = [a_ij ] whose elements are given by a_ij =i/j then the value of a₁₂  is