If two resistors with resistances R1 and R2 are connected in parallel, as in the figure, then the total resistance R, measured in ohms (â¦), is given by 1/R = 1/R1 + 1/R2. If R1 and R2 are increasing at rates of 0.3â¦/s and 0.2â¦/s, respectively, how fast is R changing when R1 = 80â¦/s and R2 = 100â¦/s?
R2 R