
求助一道高等代数的问题
1个回答
展开全部
设 d(x) = (f(x), g(x))
f(x) = d(x)f1(x)
g(x) = d(x)g1(x)
则: (f1(x), g1(x)) = 1
∴ (f1(x)^n , g1(x)^n) = 1
(f(x)^n,g(x)^n)
=(d(x)^nf1(x)^n , d(x)^ng1(x)^n)
=d(x)^n(f1(x)^n , g1(x)^n)
=d(x)^n
=(f(x),g(x))^n
f(x) = d(x)f1(x)
g(x) = d(x)g1(x)
则: (f1(x), g1(x)) = 1
∴ (f1(x)^n , g1(x)^n) = 1
(f(x)^n,g(x)^n)
=(d(x)^nf1(x)^n , d(x)^ng1(x)^n)
=d(x)^n(f1(x)^n , g1(x)^n)
=d(x)^n
=(f(x),g(x))^n
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