Proof of Cramer's Rule
In this video, I give a classical proof of why Cramer's rule works, which is a neat (but inefficient way) of solving systems of equations using determinants.
Cramer's Rule Example: https://youtu.be/HC3p7bD-hwo
Check out my Determinants Playlist: https://www.youtube.com/playlist?list=PLJb1qAQIrmmBs4zAV3zOo7Ep6o9QlZXi3
Subscribe to my channel: https://www.youtube.com/c/drpeyam