Culled from the book Advanced Engineering Mathematics, 10ed by E Kreyzig

• Showing the details of your work, find the Fourier series of the given , which is assumed to have the period . Sketch or graph the partial sums up to that including cos5x and sin5x. 

Culled from the book Advanced Engineering Mathematics, 10ed by E Krevzig 1. Showing the details of your work, find the Fourier series of the given f(x), which is assumed to have the period 2r. Sketch or graph the partial sums up to that including cos 5x and sin 5x.