1. Alternating currents are given by:
By making use of the Compound Angle Formulae determine:
a. The maximum value of the resultant current
b. Its frequency
c. Its Phase angle
2. The voltage and current in a circuit are given by:
By making use of Products to Sums Formulae determine the instantaneous power p in the circuit if p = vi expressing the answer as a sum or difference of sines and cosines.
Compound Angle Formula, Current, Voltage and Phase Angle are investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.