Please help

1 : / List the first five terms of sequence an= (-a)n ( n+ 2) 1 21 converges of diverges . if converges, find the limit. an= n sin ( 4) 4 - lim an = 1 3: Calculate the first eight terms of sequences to 4 decimal points each . 4 Find at least 10 partial sums of the series find sum if convergent Ion 5 Test Series for convergence or divergence using the alternating series test an = 2 n = evelute the limit bon 6 using the ratio test determine if convergent or divergent ( - 6)n Evalute limit lim [ an + !) neo ( ant ! ) ! in too an 7 Find the radius of con vergens 2 5n n2xn find the interval of convergent of the series