17. Let sn be the nth partial sum of the series s = (- 1) n- 1 n=1 2n - 1 , Which converges by the given in the section summary above. (a) Give a bound from above on the error Is - $100), as a decimal rounded to four digits after the decimal point. (b) Use the bound on the remainder in the alternating series estimation theorem to find an n such that |s - Sn|