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Fibonacci sequence: Cauchy-Binet formula Let (Fn)n be the Fibo- nacci sequence defined recursively by F1 =...

Fibonacci sequence: Cauchy-Binet formula Let (Fn)n be the Fibo-
nacci sequence defined recursively by F1 = F2 = 1 and Fn = Fn−1 + Fn−2In this way it all reduces to computing a high power of a 2 × 2 matrix. How can you
compute an arbitrary power of a matrix and can you come up with the Cauchy-Binet
formula from here?
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