8. The methods used in this problem will be used later in the semester when calculating the power associated with periodic signals. The RMS value of a periodie function with period T, is defined as where the integration can be performed over any interval of length Ty. Explain what RMSS stands for by studying the formula. Hint: each of the three letters "R", "M", and "S" is the initial letter in the name of a mathematical operation. Express the RMS value of f) -A where A is a parameter (constant). Express the RMS value of fr) - Bcos() where B and , are parameters (constants). d. a. b. e. Express the RMS value of f) =A + Bcos() where A, B, and o, are parameters (constants).