Please help me ASAP. Show all your work. You don't really need to put explanation! Appreciate, Here is my question:

Problem 7: The resistance R of two resistors connected in parallel is 1 1 R R1 R2 (2) Given R1 = 1000 and R2 = 4000, will the value of R be more sensitive to variation in R, or to variation in R2? Give a reason for your answer. (3) Assume R, changes from 20 to 20.1 ohms and R2 changes from 25 to 24.9 ohms. Approximately how much is the change in R