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Given the Hill cipher's encryption key, k = [ 9 1 3 1 2 1 ] , determine the corresponding decryption key. Note: provide a

Given the Hill cipher's encryption key,

k = [\begin{matrix} 9 & 13 \\ 12 & 1 \end{matrix}],

determine the corresponding decryption key.

Note: provide a handwritten, detailed solution with all computations

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