Page 83 - Calculus with Complex Numbers
P. 83
by writing the rlth term as
1 1 1
rltrl + 1) n n + 1
Find the sum of
C'O 1
)': n (n + 1)
1
by integrating cot n'z/z (z + 1) round a large square contour. Compare with
Question 6.
