Help proving prime and permutation

[zachthemath]

https://imgur.com/a/9tDdMqt

Hey So I am trying to prove this.

I tried using linear combinations and not sure how that would help. I am just not familiar with combinatorics and wondering if anyone would enlighten me.

 

[I like Serena]

https://imgur.com/a/9tDdMqt

Hey So I am trying to prove this.

I tried using linear combinations and not sure how that would help. I am just not familiar with combinatorics and wondering if anyone would enlighten me.

Hi zachthemath, welcome to MHB!

Your picture link does not seem to work.
Can you fix it?