I know what a determinant is and how to solve for it, but in the case of this n x n matrix on my homework, I'm at a complete loss as to how to even begin starting this. I don't expect anyone to work it out for me, just to give me a solid method for how to solve it and prove my method for the n by n case.(adsbygoogle = window.adsbygoogle || []).push({});

The problem states to find the determinant and prove our result for the n by n case for the square n by n matrix defined as:

https://oncourse.iu.edu/access/content/user/whoblitz/Filemanager_Public_Files/matrix.JPG [Broken]

This is the square (n x n) tridiagonal matrix with 'b' on the first and third diagonal and 'a' on the primary diagonal. Thanks everyone for your help in advance :)

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Linear Algebra question: n x n determinants

**Physics Forums | Science Articles, Homework Help, Discussion**