Answer
Converges
Work Step by Step
We have: $a_k=\dfrac{1}{k^2+4}$ and $b_k=\dfrac{1}{k^2}$
Now, we can compare the limit as:
$\dfrac{1}{k^{2}+4} \lt \dfrac{1}{k^2}$
But the series $\Sigma \dfrac{1}{k^2}$ is a convergent p-series with $p=2$.
Therefore, the series converges by the comparison test.
