My tip will be to try to use Ratio Test or Root Test if all else fails. It's easy to do and works on a lot of series.
Also, never forget the equivalency of [n+1! = n!*(n+1)] and [a^(n+1) = (a^n)*(a)]. It's simple but its very useful when dealing with factorials and powers.
The last two problems..I got them wrong working them out but my my final answers of convergence and divergence was correct…I'm weird
Anywho, thank you so much for the written out steps. I greatly appreciate it! Just found out today he was going to use these same problems and just change around the numbers, so I'm pretty content.
Katsumi Rain Admin replied
525 weeks ago