Find the approximations LnRnTn and Mn for n=5,10, and 20. Then compute the corresponding errors ELERET and EM. (Round your answers to six decimal places. You may wisl to use the sum command on a computer algebra system.) 0120xexdx What observations can you make? In particular, what happens to the errors when n is doubled? As n is doubled, EL and ER are decreased by a factor of about and ET and EM are decreased by a factor of about