2. (Theorem 20.5) Let f(0) = 20 +22+ +0.7." € F[u], where F is a field. We can define the derivative of f(), denoted by
Posted: Tue May 10, 2022 8:27 am
2. (Theorem 20.5) Let f(0) = 20 +22+ +0.7." € F, where F is a field. We can define the derivative of f(), denoted by f'(x), as f'(x) = a1 +2a22+...+nana" 1. Show that f(:) has a multiple zero (a zero with multiplicity greater than 1) in some extension E if and only if f() and f'(2) have a common factor of positive degree in F2 a