5.2

(a) Show that (5.26) with the remainder term neglected has the same form as (5.15)

and identify the Ajkn.

(b) Show that the resulting ajk of Lemma 5.2 are the same as those of (5.23).

(c) Show that the remainder term in (5.26) can be neglected in the proof of Theorem 5.3.