Consider the following calculation:

x=(b−c)/a

The following experimental values and their errors are obtained:

a = 22.1 , Δa = 1.4

b = 29.6 , Δb = 1.2

c = 25.7 , Δc = 1.2

What is the absolute error in x (Δx)?

Note we are not asking for the value of x itself, only its error. Report your answer to 2 significant figures.