Let be $ g \in \mathbb{Z} [X] $
$ g(X)= X^7 -7X^5+14 X^3-7X $
I don't know how to show that $$ g(X+ \frac{1}{X} )= X^7+ \frac{1}{X^7} $$
is an identity to broken rational functions.. Do you maybe have any Ideas?
Thank you for any help !
2026-03-29 10:16:52.1774779412
how to show that a function is an identity to broken rational functions
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