Determine whether the series is convergent or divergent. n- 1 80 - 1 n = 1 O convergent O divergent If it is convergent, find its sum. (If the quantity diverges, enter DIVERGES.)Determine whether the series is convergent or divergent. k(k + 11) k = 1 (k + 1)2 O convergent O divergent If it is convergent, find its sum. (If the quantity diverges, enter DIVERGES.)Determine whether the series is convergent or divergent. 1 +97 n = 1 57 O convergent O divergent If it is convergent, find its sum. (If the quantity diverges, enter DIVERGES.)