2-26 Determine se as séries são absolutamente convergentes (...

2-26 Determine se as séries são absolutamente convergentes (AC), condicionalmente convergentes (CC) ou divergentes (D).

2. ∑_{n=1}^{∞} n² / 2ⁿ
3. ∑_{n=1}^{∞} (-10)ⁿ / n!
4. ∑_{n=1}^{∞} (-1)ⁿ / n⁴
5. ∑_{n=1}^{∞} (-1)ⁿ⁺¹ / √n
6. ∑_{n=1}^{∞} (-1)ⁿ-1 2ⁿ / n⁴
7. ∑_{n=1}^{∞} k (2/3)ᵏ
8. ∑_{n=1}^{∞} e⁻ⁿ n!
9. ∑_{n=1}^{∞} (-1)ⁿ (1,1)ⁿ / n⁴
10. ∑_{n=1}^{∞} (-1)ⁿ(n-1)n / n² + 1
11. ∑_{n=1}^{∞} (-1)ⁿ e¹/n / n³
12. ∑_{n=1}^{∞} sin(4n) / 4ⁿ
13. ∑_{n=1}^{∞} 10ⁿ / n⁴ 2n+1
14. ∑_{n=1}^{∞} (-1)ⁿ⁺¹ n² 2ⁿ / n!
15. ∑_{n=1}^{∞} (-1)ⁿ arctan n / n²
16. ∑_{n=1}^{∞} 3 - cos n / n²/3 - 2
17. ∑_{n=1}^{∞} 2·4·6·8···2n / n!
18. ∑_{n=1}^{∞} (-1)ⁿ 2ⁿ n! / 5·8·11···(3n + 2)