1. Arrange the Fourier series of periodic (with period ω = 2π) function f (x) defined on the interval [-π; π]

2. Arrange in a Fourier series of f (x), defined in the interval (0; π) continue (where it is defined) its even and odd way. Build charts for each continuing.
2.14. f (x) = (x + 1) 2

3. Arrange in a Fourier series in the specified interval periodic function f (x) with period w = 2l

4. Arrange the Fourier function defined graphically.

5. Using the expansion of the function f (x) in a Fourier series in the range, to find the sum of the