I'd like help to understand how to solve these problems.

1. Use the derivative test to determine if the following sequences are monotonic increasing, decreasing or neither. n { n-e } 2- Use the nth term test to stae if the series converges, diverges, or cannot tell. m E n 2 20 n2+4 n=1 3. Use the integral test to determine if the series converges or diverges no 1 1 21 I'm