The voltage output V in a circuit (measured in Volts) due to an alternating

current source can be modeled by a periodic function. Suppose this is a function of the form: V(t)=10-4sin(2pi(t)) where t is measured in milliseconds (ms).
a) Determine the minimum and maximum voltage, and the average voltage of the circuit.
b) How often does the voltage cycle repeat?
c) Draw a clearly labeled graph of the function over one full period. Make sure to use the "rule of four" to create an x axis scale so that the relevant features (min, max, and average) of the graph can be easily read. Axes values should be exact numbers, not decimals


Please help by showing the work, I really don't understand how to do any of this...