Consider the loop transfer function L(s) = k/s", where k R and n is a positive integer. Use the Bode phase-gain relationship to derive an expression for the phase of L, that is, ZL(jw). You must show all steps of your derivation. Hint: Start with the equation in the lecture that relates the phase with "slope" of magnitude change. You may need to use the following integral equality: In (coth) du F.. = 2