This is a heat equation related math problem.
1. Homework Statement
The complete question is: Verify the orthogonality integral by direct integration. It will be necessary to use the equation that defines the λ_n: κ*λ_n*cos(λ_n*a) + h*sin(λ_n*a)=0.
Homework Equations
κ*λ_n*cos(λ_n*a) +...