Which of the following series converge conditionally?
∑n=1∞(−1)nn2\sum_{n=1}^{\infty} \frac{(-1)^n}{n^2}∑n=1∞n2(−1)n
∑n=1∞(−1)nn\sum_{n=1}^{\infty} \frac{(-1)^n}{n}∑n=1∞n(−1)n
∑n=1∞(−1)nlnnn\sum_{n=1}^{\infty} \frac{(-1)^n \ln n}{n}∑n=1∞n(−1)nlnn
∑n=1∞(−1)nn\sum_{n=1}^{\infty} \frac{(-1)^n}{\sqrt{n}}∑n=1∞n(−1)n