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rison Tests

Question $1,10\mathrm{.}5\mathrm{.}3$

What comparison series would you use with the Comparison Test to determine whether ${\displaystyle \underset{k=1}{\overset{}{}}}\frac{1}{k^{2}1}$ converges

Choose, the correct answer below.

A$.{\displaystyle \underset{k=1}{\overset{}{}}}{k}^2$

c$.{\displaystyle \underset{k=1}{\overset{?}{}}}\frac{1}{k^2}$

D$.{\displaystyle \underset{k=1}{\overset{}{}}}\frac{1}{k}$