Problem 2. Sketch the following periodic wave-forms
![1736_ku.jpg](https://secure.tutorsglobe.com/CMSImages/1736_ku.jpg)
Problem3: Find the complex exponential Fourier series and the equivalent trigonometric form for the periodic signal
![2017_ku.jpg](https://secure.tutorsglobe.com/CMSImages/2017_ku.jpg)
Problem 4: Use the definition of the Fourier transform to find the spectrum of the following signal
![112_ku.jpg](https://secure.tutorsglobe.com/CMSImages/112_ku.jpg)