Estimate the absolute error in determining $\sin(x)$.
Estimate the relative error in determining $\sin(x)$.
I know how to calculate these for a specific $x$ with the formula \begin{align} \textrm{Absolute Error = Calculated value - True value} \end{align} and \begin{align} \textrm{Relative Error = Absolute Error / True value}. \end{align} But there is no specific $x$, could someone help me where to begin? It's probably because I don't understand the question?