Since you just took an examination, there is no homework assigned to be turned in today.
Discuss the exam from last class.
Learn about the basic principles of second order linear differential equations: fundamental solutions, superposition, homogeneous and nonhomogeneous equations, existence and uniqueness.
Read sections 4.1-4.5, pages 150-180, in Nagle & Saff.
Work the following problems in Nagle & Saff and hand in your solutions at the beginning of class on Tuesday, February 24.
Section 4.2, pages 158-159, exercises 9, 13, 15, 19, 22, 30.
Section 4.3, pages 167-168, exercises 7, 13, 17, 21.
Section 4.4, page 172, exercise 1.
Section 4.5, page 180, exercise 1.