In this video we will see one of the very important theorem in double integration and that is Fubini's Theorem. Here we will see the version of Fubini's Theorem over arbitrary domains. This you can find in 15th chapter of Thomas calculus book. I took plenty of examples so that Theorem becomes clear. If you have any other doubt then you can ask me in the comment section. ========================================================= Link to previous lectures on Multiple integrals: 1. Lecture where I talked about concept of double integration using Single integration, GeoGebra and Rainfall example. https://www.youtube.com/watch?v=9MmE1xW3wFU 2. Lecture where I took example using Riemann sums. https://www.youtube.com/watch?v=0qoIeTkGbwU 3. Lecture on Iterated integrals & importance of Fubini's Theorem over RECTANGULAR region. https://www.youtube.com/watch?v=b7Gh_O2JVAY