1. The problem statement, all variables and given/known data Let t = f(g, h, A, Δm, Γ, r). For t = 2 s, the propagated error is σ = 0.02 s. Can the error of 1/t2 be simply determined using the known error in t = (2 ± 0.02) s, or must the variance formula (with all the partial derivatives and errors of each dependent variable) be re-derived? 2. Relevant equations When squaring a quantity with an error, the new %error of the square is half the old %error. I don't know how to find the inverse of an error (tried looking it up online but can't seem to find it). 3. The attempt at a solution t2 = (22 ± 1% / 2) s = (4 ± 0.5%) s 1/t2 = ?