A) Suppose that the net resistance comes from two resistors in series: R=R1+R2. Assume that you measure each resistor independently, multiple times in multiple ways, obtaining these mean values and uncertainties: R1={1.234+/-0.016} Ohms and R2={3.142+/-0.017} Ohms. The mean value of the net resistance is (of course): R=4.376 Ohms. Calculate the net uncertainty in this value of R (also in Ohms).