Determine if the following series converge or diverge. Be sure and state which test/method you used. If series converges by Geometric test then be sure to find sum of the series. a) 4 + 16/3 64/9 +

b) (3)^(n1)/4n n=1 c) (2 + n)/(1 2n) n=1 d) cos( 1/n)

n=1

e) ( ( 3/n^2 ) 3/(n + 1)^2)) n=1