a} let f'j = sin{$y}cos(z) Find 6f. b} An array of 12 charges is brought together, and we wish to calculate the work (lone in doing so. [This is a large \"double suni."} How man},r terms appear altogether in this sum? c} For a given electric potential, V = L e'lrlmlz, calculate E (1} Two 1009 resistors are in series with each others and also with three 100 pF capac itors. \"'hat is the time constant for this whole circuit? e} Draw the electric circuit diagram for the arrangement in the previous part when properly connected to a 2V battery. I don't care which orientation [that is. which end is plus or minus) for the battery in the circuit