Calculate all three vectorial derivatives of the function (4.7) with regard to (x3, x4) using the XBOOLE operations mentioned above, visualize the Karnaugh maps, observe that the vectorial derivatives depend on the same variables as the given function, and verify basic relations between these three vectorial derivatives Solve the equation f(x1, x2, x3, x4) = 1 for the function (4.7) and store the result as object number 1.