(a) Show that an cn cn and bn i(cn cn). (b) Use the results in part (a) and the complex Fourier series in Example 1 to obtain the Fourier series expansion of f.

Topics C overed: Fundamental Theorem of Calculus(FTOC), Indefinite I ntegral, and Substitution R ule ● Fundamental Theorem of Calculus: ○ Definition: If f is continuous on the closed interval [a,b] and F(antiderivative of f) is the indefinite...