1 Obtain the Fourier series to represent f(x) given as follows: x, 0 x 7 f(x)= 27-x, x2T 2 Expand f(x)=e as a Fourier series in the interval (-1, 1) 3 Find the Fourier series of the function f(x)=1+x, in 0 < x < 1. 4 Find the Fourier series of the below function and draw the graph for each case: 5 f(x) = x -