9th ed
old_10/na10f_hw07.tex:Section 3.1: Problems 6(a), 10(a), 19(c).  
old_10/na10f_hw07.tex:% Section 3.1: Problems 25.
old_10/na10f_hw08.tex:through evaluating (3.1) and (3.2) directly?
old_10/na10f_hw08.tex:then $L_{3,0}(x) +L_{3,1}(x) +L_{3,2}(x) +L_{3,3}(x) =
1$ 
old_10/na10f_hw08.tex:Skip the materials from page 123, after (3.11) till end
of section 3.2.
old_10/na10f_hw08.tex:% Section 3.1: Problems 25.
old_10/na10f_hw09.tex:% Section 3.1: Problems 25.

   8th ed section 3.1, problem 25 page 116
=  9th ed section 3.2, problem 11 page 124 
= 10th ed section 3.2, problem 11 page 121