32: If you tried the l'Hospital rule, you should get
The problem is finished.
If you went the alternative way, you should have identified n as the dominant term in the numerator and en as the dominant term in the numerator. Thus the next step should have been
Two steps were not worked out. It is a standard fact that the first ratio,
n divided by en, tends to zero; this can be
easily checked using the l'Hospital rule. Using l'Hospital one also easily
checks that the ratio