Recommended exercises.

• Category I. ISection 7.6.1: ex 8, ex 9.
• Category II. Seksjon 7.6.1: ex 1, ex 2, ex 3, ex 4, ex 5, ex 6, ex 7.
• Category III: Section 7.6.1: ex 10, ex 11.

You find an explanation of the categories below.