Prove

for 0

(a) Use (1.18) to express Bi,n in terms of powers of p only. Then show that coefficients of like powers of p are the same in both expressions.
(Contributed by Markus Haas)

(b) First verify that An,n = Bn,n. Next argue that the result holds if Ai,n −
Ai+1,n = Bi,n − Bi+1,n, 1 ≤ i(Contributed by Walther Paravicini)

- j=i - = Bin