(Solved): In Problems 1 through 14 , the values of a periodic function \( f(t) \) in one full period are give ...

In Problems 1 through 14 , the values of a periodic function \( f(t) \) in one full period are given; at each discontinuity the value of \( f(t) \) is that given by the average value condition in (13). Sketch the graph of \( f \) and find its Fourier series. 1. \( f(t)=\left\{\begin{array}{rr}-2, & -3