a) Design a 1st order low pass filter with a cut-off frequency of 15Hz: Vin= sin(25t). Here R=R. (10 Points) Vin C HH R M Vout -O b) Build a transfer function H(jo)=Vout(jw)/Vin(jo) based on the design values R and C above. Plot the frequency response of H(jo), the so-called Bode Plot, (magnitude vs. frequency, and phase vs. frequency) with frequency on a log scale (frequency range: 0.01 Hz ~ 100 Hz). (10 Points) You can use online software: http://sim.okawa-denshi.jp/en/detatukeisan.htm Copy the screen-captured image and paste it below.