5. (a) Using ratio test, determine whether the series (In 2) n is convergent. If the series is not conver- n= 1 gent, write DNE. If the ratio test is inconclusive, you may use another test.(b) Using root test, determine whether the series ( 1+ 2 7 ) " is convergent. If the series is not con- n= 1 vergent, write DNE. If the root test is inconclusive, you may use another test