need help due tomorrow!

[jeca86]

use integral test to determine whether series is divergent or convergent.

i dont know how to do the sum symbol but at the top it has the infinity sign and at the bottom it has n=1 . the rest is 1/(n^2 +1). can i get a walk through???[/list]

 

[Matt]

Comparison Test. Note that:

\(\displaystyle \L\qquad\frac{1}{n^2+1}\leq\frac{1}{n^2}\)

for all n greater than or equal to 1.