Explain and give 0111 2 example for each (1) Phase and spectrum Plot Duality & fourian transform Bandwidth in the domain

Please explain the difference between Frequency Domain and Complex Frequency Domain (S-domain) for continuous-time Signals and Systems.

For the following sequence {3.2,-2.2,-1.5,1.4,1.89,3.3…}, Quantize it using a uniform quantizer in the range of (-3,3) with 6 levels, and write the quantized sequence.

-. For the signal x[n] = 1+cos(™ analysis/synthesis equations. ), answer the following questions. Use the transform (a) What is the period of x[n]? (b) Is the DTFS of x[n] periodic? If yes, what is the period? (c) Find the DTFS of x[n].