1. The problem statement, all variables and given/known data (a) If R1 = 4.7kΩ, what value for C1 will give a cutoff frequency of 50kHz? (b) If the input voltage is described by the equation Vin = 3cos(2π(4000)t), what will the peak output voltage be? 2. Relevant equations (a) fc = 1/(2πRC) (b) Vout/Vin = 1/√(1 + (2πfRC)2) 3. The attempt at a solution (a) I rearranged the equation to C = 1/(2πfcR). I got 71.2 pF but am uncertain. (b) Not sure if this is the relevant equation. If it is, than I am uncertain how to get the frequency of the input voltage.