7. Let V be a complex vector space and let T e L(V). Let r be the minimal polynomial of T and suppose the degree of r is m. (a) Show that U = span {I,T,T²,T°,..T™-1} is an m-dimensional subspace of L(V). (b) Show that T™m e U. (c) If T is invertible, is T-1 e U?

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Chapter4: Vector Spaces
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7. Let V be a complex vector space and let T € L(V). Let r be the minimal polynomial of T and suppose the
degree of r is m.
(a) Show that
U = span {I,T, T²,7°,..T™-1}
is an m-dimensional subspace of L(V).
(b) Show that T e U.
(c) If T is invertible, is T-1 e U?
Transcribed Image Text:7. Let V be a complex vector space and let T € L(V). Let r be the minimal polynomial of T and suppose the degree of r is m. (a) Show that U = span {I,T, T²,7°,..T™-1} is an m-dimensional subspace of L(V). (b) Show that T e U. (c) If T is invertible, is T-1 e U?
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