U.) Let f(x) = X Sin X. describe the steps you would use to nd f '(1t) Explain how you might use the graph of f(x) to check your answer. Let y = (sin x)2. Describe the steps you would use to nd the equation of the line tangent to the graph of this function at the point where x = E The DC component of the signal is represented by the constant term of the function V(t) = 55in t + 12. Suppose this DC component were increased. What impact would this have on 1) The maximum and minimum voltages? 2) The amplitude of the signal? 3) The rst derivative of the voltage of the function? Explain your