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As we talked in the class that if a signal x t 120sin 10 t a) Find frequency response of x t , X f b) Plot the Magnitude and phase response of X f , which is X f OX f C) X, t is cosine representation of x t Find frequency response of X2 t , X2 f ii. Plot the Magnitude and phase response of X, f , which is X, f X2 f 2 d) If x t 120sin 10 t is delayed by - write the frequency response of X f and X, f