Problem : 
Determine whether the series
converges or diverges.  
The comparison test implies that the series diverges, since 
|  ≥  |  | 
 
and the harmonic series 
1/n is known to diverge.
 
Problem : 
Determine whether the series
converges or diverges.
The 
n-th term of the series is equal to 
Since the series 
 1/n2
1/n2 converges, so does this series, by the 
comparison test.  
 
Problem : 
Show that the series 
converges.  
This follows from the comparison test since
|  ≤  |  |