How Do You Find The Frequency Response Of An LTI System?

How Do You Find The Frequency Response Of An LTI System? −jΩm = C(Ω) − jS(Ω) = H(Ω) . , where H(Ω) is the frequency response of the LTI system. The system therefore produces an output signal that is the “3-point weighted moving average” of the input. How do you find the frequency response of