Mathematical Methods in the Physical Sciences · Problem 8.10
FUNCTIONS OF A COMPLEX VARIABLE — Mary Boas
Mathematics — Methods · green-functions-ode
Problem
Solve (8.12) and (8.14) to get (8.15). Hint: Use Cramer's rule (Chapter 3, Section 3); note that the denominator determinant is the Wronskian [Chapter 3, equation (8.5)] of the functions sinx and cosx.