Section: Engineering Mathematics | Marks: 2
Common Data: Let $f: \mathbb{R} \to \mathbb{R}$ be defined by $f(x) = x^2$ for $-\pi \le x \le \pi$ and $f(x + 2\pi) = f(x)$. The sum of the absolute values of the Fourier coefficients of $f$ is
- A. $\pi^2/6$
- B. $\pi^2/3$
- C. $2\pi^2/3$
- D. $\pi^2$