©
E.V. Blackburn, 2003
Problems
Try problems 20.21 (a) - (d), 20.22 (a) - (e), 20.23
(a) - (e), 20.24, 20.26, 20.30, 20.31, 20.37, 20.38,
20.39, 20.41, 20.44, and 20.46 on pages 985 -
990 of Solomons and Fryhle.