1 Find the Taylor series of f(x) = 1 eentered at r: = 1". Choose the Taylor series. Identify the interval on which the expansion is valid. (Give your answer as an interval in the form (3:, :3}. Use the symbol on for innity, U for combining intervals, and an appropriate type of parenthesis "(",\") , [","]" depending on whether the interval is open or closed. Enter 12) if the interval is empty. Express numbers in exact form. Use symbolic notation and fractions where needed.) The expansion is valid for: {430.13}