Fourier Series Coefficients: Representation of a Function by a Series of Orthogonal Functions

Fourier Series Coefficients: Representation of a Function by a Series of Orthogonal Functions.
In
this video, I talk about a formula to find the coefficients of a series
with respect to an orthogonal set of functions. This formula is useful
as this is the formula we use to find the Fourier series coefficients.