Matrices Mock Tests

If A = [[1, 2], [3, 4]], then the inverse of A is:

If A = [[2, 1], [3, 4]], then the trace of A² is:

If A = [[1, 2], [3, 4]], then the determinant of A is:

The value of the determinant |1 2 3; 2 1 2; 3 2 1| is:

If the system of equations x + y + z = 6, x + 2y + 3z = 10, x + 2y + lz = m has infinitely many solutions, then l + m equals

The system of equations x + y = 3, 2x + 2y = 6 has:

The determinant of the matrix [[2, 1, 0], [1, 2, 1], [0, 1, 2]] is

The value of the determinant |1, 0, 0| |0, 1, 0| |0, 0, 1| is: