The Fourier cosine series for an even function f(x) is given by
\(f(x) = {a_0} + \sum\limits_{n = 1}^\infty {{a_n}\cos (nx)} \)
The value of the coefficient a2 for the function f(x) = cos2(x) in [0,π] is
1
-0.5
2
0.0
3
0.5
4
1.0
The Fourier cosine series for an even function f(x) is given by
\(f(x) = {a_0} + \sum\limits_{n = 1}^\infty {{a_n}\cos (nx)} \)
The value of the coefficient a2 for the function f(x) = cos2(x) in [0,π] is