Helpful videos:
Polar Basics:
1.https://www.youtube.com/watch?v=r0fv9V9GHdo
2. https://www.youtube.com/watch?v=U5Jqa6RtnIE
Rectangular to Polar
1. https://www.youtube.com/watch?v=I1ezYrtObGk
2. https://www.youtube.com/watch?v=-T5yrldLESs
3. https://www.youtube.com/watch?v=_uIk40hL1i4
4. https://www.youtube.com/watch?v=9saYZmiQJpk
Polar to Rectangular
1. https://www.youtube.com/watch?v=z-92ILPVH0s
2. https://www.youtube.com/watch?v=29VW-NAd3lA
3. https://www.youtube.com/watch?v=Qx1CnIXesMk
1.https://www.youtube.com/watch?v=r0fv9V9GHdo
2. https://www.youtube.com/watch?v=U5Jqa6RtnIE
Rectangular to Polar
1. https://www.youtube.com/watch?v=I1ezYrtObGk
2. https://www.youtube.com/watch?v=-T5yrldLESs
3. https://www.youtube.com/watch?v=_uIk40hL1i4
4. https://www.youtube.com/watch?v=9saYZmiQJpk
Polar to Rectangular
1. https://www.youtube.com/watch?v=z-92ILPVH0s
2. https://www.youtube.com/watch?v=29VW-NAd3lA
3. https://www.youtube.com/watch?v=Qx1CnIXesMk