1. The problem statement, all variables and given/known data Using the error propagation rule for functions of a single variable, derive a general expression for the fractional error, Δq/q, where q(x)=x^n and n is an integer. Explain your answer in terms of n, x, and Δx. 2. Relevant equations The uncertainty of a function of one variable will be Δq=abs(dq/dx)Δx 3. The attempt at a solution Okay, so I figured I could divide both sides of the equation above by dq, which will give a fractional uncertainty. This seems okay, but having dx in the denominator doesn't seem like a good idea. Any ideas on where to begin? Thanks.