0, The Fourier series of the function f(r) = { is given by %3D 5z, 0...

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0, The Fourier series of the function f(r) = { is given by %3D 5z, 0<I< T 10 [cos z + 1 cos 57 +...+-sin z 1 cos 3r + 32 52 1 sin 2x +sin 3x + ...]. 3 4. The minimum error between f and the Fourier polynomials (trigonometric polynomials) of degree 1 equals 573 1) 25(- 24 57 2) 24 3) 25(- 3 72). 8. 4) 3. 8 573 5) 5( 24 5. 0, The Fourier series of the function f(r) = { is given by %3D 5z, 0<I< T 10 [cos z + 1 cos 57 +...+-sin z 1 cos 3r + 32 52 1 sin 2x +sin 3x + ...]. 3 4. The minimum error between f and the Fourier polynomials (trigonometric polynomials) of degree 1 equals 573 1) 25(- 24 57 2) 24 3) 25(- 3 72). 8. 4) 3. 8 573 5) 5( 24 5.