Use the first five terms of the Maclaurin series for the elliptic integral E(k) and k = sin (?). 1 . 3 . 5 ... (2n - 1) 2 E(k) 1 2n 2 . 4 . 6 ... (2n) I Estimate the period of a 12-m pendulum released at angle 0 = . (Use decimal notation. Give your answer to two decimal places. Use g = 9.8 m/s2.)