ແກ້​ໄຂ​ບັນຫາ​ຄະນິດສາດ​ໃດໆ

ຂັ້ນ​ຕອນ​ຕໍ່​ຂັ້ນ​ຕອນ

1. \sum_{n=1}^{\infty} \frac{n}{n + 1}

   Does this series converge?

2. \lim_{n\to\infty} \frac{n}{n + 1} = 1

   Divergence test: if the terms do not go to 0 the series cannot converge.

ເປີດ​ເຜີຍ​ຄຳ​ຕອບ

\text{diverges}