Four.I.3 Permutation Expansion, Part Two

The permutation expansion formula for the determinant. This is part of a course is based on Linear Algebra by Jim Hefferon, a Free text. See https://hefferon.net, which includes worked answers to all exercises, copies of the slides for these lessons, and more. There is much more undergraduate mathematics teaching material available at https://hefferon.net, including a number of other texts that are Free. You may also be interested in my other videos at https://youtube.com/@JimHefferon, including Calc I lessons at https://www.youtube.com/playlist?list=PLwF3A0R8OzMpSL5r8OnOYJIlvafOWv8ph , or my Calc II at https://www.youtube.com/playlist?list=PLwF3A0R8OzMpSL5r8OnOYJIlvafOWv8ph . In particular, you may want to check out How to Study College Mathematics https://youtu.be/pzdO7ugyRmg . If you appreciate this work then you can buy me a virtual coffee at https://ko-fi.com/jimhefferon. And of course you can help by clicking Like or Subscribe. Thanks!