Matrices And Determinants Mock Tests

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

If A = [[1, 2], [3, 4]], then det(A) equals:

The system of equations x + y = 5 and 2x - y = 1 has:

If A = [[1, 0], [0, 1]] and B = [[2, 3], [4, 5]], find AB.

The determinant of the matrix [[3, 1], [2, 4]] is:

If A = [[1, 2], [3, 4]] and B = [[0, 1], [1, 0]], then AB equals:

The determinant of the matrix [[2, 3], [1, 4]] is:

If A = [[1, 2], [3, 4]] and B = [[2, 0], [1, 3]], find A + B.