When the impulse train 00 x[n] = .2: o[n- 4k] k = - 00 253 is the input to a particular LTI system with frequency response H(eiw), the output of the system is found to be ( 57T y[n] = cos 2 n + '4 o 7T) Determine the values of H(eikr.IZ) fork = 0, 1, 2, and 30